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WIR i-Star Professional User Guide

1. REGRBOSItTBREPRT E Fig 34 See Fig 35 The control panel of the Target Model window contains the following features Files Allows selection ofa project file to display in the target model area When a desired file has been chosen the target model col or patches will update accordingly Region of interest Allows selection of a desired region of in WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Target Model Window Use complete region Components Show markers WIR i Star Professional Edition Version 7 2 64 terest reds blues highlights etc The target model area limits viewable patches to those that meet the criteria for the cho sen target image The number of patches meeting the criteria and total number of patches on the target is displayed When checked the target model area dis plays all patches meeting the criteria for the chosen region of interest When un checked the region of interest is statisti cally filtered The target model area dis plays only the worst 10 of patches found in the chosen region of interest The num ber of patches meeting the criteria and the total number of patches on the target are displayed Used in conjunction with the Show Mark ers check box and the Min and Max edit boxes See explanation for Show Markers check box The type of components cho sen may affect the number of patc
2. Gamma minimum quality level False encoding truncation level Minimum quality level Nearest neighbors grid WIR i Star Professional Edition Version 7 2 34 culation would be too high or low when compared to the image contrast seen by a human observer The i Star application compares I ctr data to the Gamma minimum quality level and then computes the percentage of data greater than or equal to this value The G QC component represents the result of this calculation The i Star application compares the I ctr data to the Gamma minimum quality level and then computes the percentage of data less than or equal to this value The G QC component represents the result of this calculation The false encoding truncation value is used to compute the I ctrj component To better understand the I ctr compo nent refer to the technical paper 1 The i Star application compares I ctr data to the minimum quality level then com putes the percentage of data less than or equal to this value The I ctrQC compo nent represents the result of this calcula tion Allows user to select the nearest neigh bor pattern used to calculate the I ctr and I tone data Any of the eight neighboring patterns may be included or excluded User Guide Rev 2010 01 01 User Interface Main Window Project Variables 35 The lt I br gt sub tab contains variables related to the calculations of I br values See Fig
3. File Numbers C Sample MNOO0 ls C Samplet MNOD1 xls C Sample MNO02 xls C Sample1 MNOO3 xIs C Sample1_MNoo4 xis C Sample1_MNO05 xls Averaged Component Averaged Component Components I Component Results fan Data Statistical selection IV Use complete region Fig 32 L IF Show backdrop Tonal Reproduction Use time scale Hue Angle Distibution Component Histograms Component Development Spectral Distribution The central frame contains a chart allowing greater control of the chart width and height Controlling the central frame dimensions is important when exporting charts from the i Star application for external reports The context menu associated with the central frame provides the following actions Maximize Frame Square Frame Down Square Frame Up Save Chart as jpg WIR i Star Professional Edition Version 7 2 Reshapes the central frame to cover the whole accessible area of chart window Reshapes the central frame as a square using the largest value of the initial frame dimensions to determine the size Reshapes the central frame as a square us ing the smallest value of the initial frame dimensions to determine the size Exports content of the central frame to the external file in jpg format User Guide Rev 2010 01 01 User Interface Charts Window 60 Save Chart as wmf Exports content of the central frame to the external file in wmf for
4. User Interface Main Window Preferences Page 26 The lt Project Options gt sub tab contains adjustable options controlling functions on the Project Page See Fig 11 A detailed description of these options can be found in the Project Page and Results Window chapters v WIRTStar Licensed to Beta Tester i Star Project Windows Arrange Extras General Permanence Application Directories Data import options Project Options Notification options Themes Reports Date and time configuration Date Year Character max length 4 symbols y Month Character max length 2 symbols m Day Character max length 2 symbols d yyy mm fad Separator Time Separator Include seconds Use 24 hours time Date Time hotkey C Cte d C Project options Digit rounding The number of decimal places the numbers will be rounded to E Use digit rounding in calculations Results report options To mark Files with Report results Report time units E Ol Numbers jv Use complete region Hours Names kLux Hours C Dates Display Years Notes Adjusted Years No Active Project Fig 11 Date and time configuration Gives the ability to format the date and time found on the project page Allows the designation of two hotkeys used to en ter the date and time into editable fields Date and time formats will not affect proj ect results Project
5. Alternatively Restore standard copies the parameter settings in the Project Chart Settings tab and transfers the information to the current lt Settings gt Chart T Import Export Restore defaults Restore standard Save as standard I Component Results and Averaged Parameter Development Files View I Components Function Color Dist Trend File 1 I Contrast Factor full Spline o File 2 IM Contrast Factor truncated Spline Brightness Factor full Spline Brightness Factor truncated Spline I color full Spline v I color truncated Spline v I tone full Spline v T Fone truncated Spline vl Developing Function Dist Trend Averaged Component Spline v Tonal Reproduction Parameter Histograms Hue Angle and Spectral Distributions General settings Dot size Files Function Color Dist Trend 5 File 1 Line v M File 2 Polynomial 6 isse v M AIDED 2 V Show legend Iw Show backdrop Use time scale Fig 31 User Guide Rev 2010 01 01 User Interface Charts Window 59 The lt Chart gt tab contains a central frame and a control panel See Fig o Chart 2 Settings Chart Region of interest Central Frame for Chart 2 562 x 429 Averaged L for Complete Region of All Data
6. button Export and Import buttons on this tab help move color maps data from one project to another The Export button allows data to be saved from the Color Map tab to an external islcm file The Import button loads a selected isicm file to the Color Map tab Any number of islcm files may be stored WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Color Map 47 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 48 Project L Settings The Project Chart Settings tab contains the Chart window default set tings Similar parameter settings can be found on the Settings tab of the Chart window All created project Chart windows follow the exact set of parameters specified on Preferences Page chart setting tab The Project Chart Settings tab contains the following controls lt I Components Results and Averaged Component Development gt lt Tonal Reproduction Parameter Histograms Hue Angle and Spectral Distribution General Settings The I Components Results and Averaged Component Development gt group allows specificity of the I Components Results chart and Component Development chart settings s Test84 sf WIRiStar Licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of
7. project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence I ctr Pbr ftone lc P total P tone variables False encoding truncation Level Minimum quality level 4E Methods Default 0 Default 20 Fig 19 False encoding truncation level The false encoding truncation value is used to compute the parameter I tone I ctr is a negative value when a contrast inversion has occurred in the image To better understand the I tone refer to the technical paper 1 Minimum quality level The i Star application compares I tone WIR i Star Professional Edition Version 7 2 data values to the minimum quality lev el and then computes the percentage of data less than or equal to this value The I toneQC component represents the result of this calculation User Guide Rev 2010 01 01 User Interface Main Window Project Variables 37 The lt I c gt sub tab contains variables related to the calculation of color retention values See Fig 20 Test 84 isf WIRTStar Licensed to Beta Tester Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence I ctr br F tone Fo P total 4E Methods I color variables Chroma threshold 9 5 Default 9 5 Delta a b offset ccorrection factor
8. Fig 21 S Test 84 isf WIR TStar Licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence I ctr I br Ftone Fe total AE Methods I tone in calculation of I total Weighting factor 1 Default 1 Fig 21 Weighting factor The I total is the weighted average of I c and I tone values as described in the technical paper 1 The 1 0 weight value returns the average of I c and I tone A value between 0 0 and 1 0 gives weight to I c and a value higher than 1 0 gives weight to I tone WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Variables 40 The lt AE Methods gt sub tab contains variables related to the calculation of color difference systems such as Delta E 1994 Delta E 2000 or Delta E cmc See Fig 22 To better understand these variables refer to specific documen tation for each color difference system S TestB4 isf WIRT Star Licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence P ctr Pbr Ftone Fe F total 4E Methods Delta E 1994 Delta E 2000 Delta E cme K1 0 no K
9. 18 oO Test 84st WIRTStar Licensed to Beta fester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence ctr Pbr tone Ke F total E Methods I brightness variables Basis of calculation Single patch C Nearest neighbors Default Single patch Minimum quality level 50 Default 50 Fig 18 Basis of calculation Choose either single patch or near est neighbors The nearest neighbors choice is defined by the matrix values set by the I ctr component calculation When single patch is chosen the i Star appli cation will reference the brightness of the center patch in the nearest neighbor grid Minimum quality level The i Star application compares the I br data to the minimum quality level and computes the percentage of data less than or equal to this value The I brQC com ponent represents the result of this calcu lation WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Variables 36 The lt I tone gt sub tab contains variables related to the calculation of I tone values See Fig 19 Test 84 isf WIRTStar Licensed to Beta Tester tStar Project Files View Windows Arrange Extras General Project Info Project Components Project Variables
10. 7 2 User Guide Rev 2010 01 01 User Interface PDF Report Preview Window 69 ponents averaged for the worst 10 for each region of interest at a certain phase of the test The lt Standard Charts gt tab contains five standard charts representing the general test results including i Star charts for the whole test target general skin tones dark skin tones light skin tones and gray regions of interest The lt Extra images gt tab contains a list of extra images associated with the test if any The lt References gt tab contains information about the publicly accessible article with the explanation of the i Star metric Create PDF Report and Create PDF Reports and Print buttons com plete the procedure of test reporting After selecting desired categories of test information further specificity by accessing the Category Page Most controls located on category pages serve primarily for information preview Test origin and rest result informa tion are found on these pages If fields show incorrect information correc tions must be made to the whole project thus requiring a total recalculation The list of controls serving specific functions during report printing in clude lt File Name gt field on Summary page lt Browse gt button on Summary page lt at user defined folder gt check box on Summary page lt at project folder gt check box on Summary page lt at collector folder gt check box on Summar
11. Interest Project Crops Project Color Map Project Chart Settings Permanence Import Export Restore defauts I Component Results and Averaged Component Development Files View I Components Function Color Dist Trend File 1 M Contrast Factor full Spine File 2 v Contrast Factor truncated Spline Brightness Factor full Spline Brightness Factor truncated Spline T color full Spline I color truncated Spline T tone full Spline Ut Fono teuncatad nline Developing Function Averaged component Spline Tonal Reproduction Component Histograms Hue Angle and Spectral Distributions General settings Dot size Files Function Color Dist b 1 File 1 Line v File 2 Polynomial 6 vj e IV Legend V Backdrop Time Scale Fig 26 To include or exclude any files for plotting click on the check boxes in the View column of the Files table Specify the graphing methods for each component plotted on the chart i e no plotting only data points only trend line or both data points and trend line WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Chart Settings 49 Specify which mathematical function is desired to build the trend line by choosing one of the following
12. Page 21 The lt Directories gt sub tab contains the project name number of files and directory information See Fig 10 This sub tab also contains controls al lowing path and folder specification for every file action The information in this tab may change between projects e WIR Star Licensed to Beta Tester Star Project E yi Windows Arrange Extras General Permanence Application Directories Data import options Project Options Notification options Themes Reports Current project files o Current project name Current project directory Directories Open project C Documents and Settings HP_Administrator Desktop iStar Browse Create project C Documents and Settings HP_Administrator Desktop iStar Browse Project info C Documents and Settings HP_Administrator Desktop istar Browse Color map C Documents and Settings HP_Administrator Desktop iStar Browse Crop C Documents and Settings HP_Administrator Desktop iStar Browse Regions C Documents and Settings HP_Administrator Desktop istar Browse Endpoints C Documents and Settings HP_Administrator Desktop iStar Browse Chart settings C Documents and Settings HP Administrator Desktoplistar Browse No Active Project Fig 10 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 22 The lt Data Import O
13. Research Inc website and in the How to Interpret the Results chapter of this manual o Chart 2 Settings Chart Central Frame for Chart 2 562 x 429 Tonal Reproduction for Complete Region of All Data 40 50 60 70 80 90 100 L initial Samplei MNOO0 xls Sample MNOO0 xls Sample MNOO5 xls Sample1 MNOO5 xls j Region of interest al Data Statistical selection v Use complete region Fig 33 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface 63 Target Model The lt Target Model gt window contains a dedicated target model area for Window viewing the test target See Fig 34 The i Star application converts file data and displays the color patches in the target model area The lt Target Model gt window contains a control panel allowing selected data to be displayed and retrieval of colorimetric and I components from individual patches in the test target Colorimetric data may be retrieved in the test window but the target model displays corresponding colors and geometric arrangement of the patches in the entire test target or a region of interest The lt Target Model gt window may be opened multiple times to compare different aspects of a test target data Target Model 1 File 1 Regions of interest All Data zi v Use complete region ej a 84 patch es of 84 R Components 14453 14 522 16 576
14. are restored everytime the project is closed When checked the current settings remain This is important when a series of projects are created Controls setting to choose the running version of the i Star application as the de fault program to open isf formatted files If this option is disabled the current ver sion of the i Star application will access the projects only through the Project Open Project menu item When enabled this option creates the OS registry record overwriting previous reg istry records If more than one version of the i Star application exists on a comput er the one associated with the isf file type must be determined Note that on systems running Windows Vista the user must run the application with administrator privileges every time this option is set or unset User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 20 Use screen resolution correction Yes No Controls resizing the i Star application windows and controls to meet the varied computer screen resolution settings Due to large amounts of data and controls necessary for the i Star application WIR recommends using screen resolution equal to 1280 x 1024 SXGA or higher If the screen resolution is less than 1280 x 1024 some controls on the i Star applica tion windows may be hidden WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences
15. embedded in a project The calculation results are stored in a set of sub pages The sub pages may be opened by clicking on the appropriate tab This data may not be edited WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 55 Data Viewing of the lt Data Layout Page gt appears only when creating a new Layout Page project or adding data files to an existing project This page contains a con trol panel and a grid with data from the import file See Fig 29 While loading the data file into the grid the i Star application recognizes the file format and identifies all critical information When verified this information is auto filled into the panel When unsuccessful the DIA engine is enabled The i Star application will attempt to fill the blanks When both methods fail manual data entry is necessary All cells that require data are colored yellow by the i Star application i Star Project Files View Windows Arrange Extras Data Layout Corrected File Name C Documents and Settings HP_Administrator Desktop iStar SNO0002_isf Sample3_MNOO1_iStar Image Geometry Data Data Origin BE Number of Patches 84 B Tlluminant Number Of Rows Observer Number Of Columns Bi White Base n Reading Sequence First Left To Right C Top To Bottom ORIGINATOR Set data type to spectral DESCRIPTOR Output Characterisation Set data type to XY
16. grid is not adjustable S Test 84 isf WIRT Star Licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence Name Tab Name Min Marker Max Marker Abs Min Abs Max Spectrum SP None None None None None None None None None None None None None None None None L source None None None None lA source None None None None B source None None None None L adapted E 30 70 0 100 lA adapted 10 10 127 128 B adapted 10 10 127 128 Delta L 0 0 100 100 Delta a 255 255 Delta b 255 255 Hue Angle 0 360 Delta Hue 180 180 Hue Retention full 0 100 Hue Retention truncated 0 100 Chroma full i 0 182 Detta Chroma AC E 182 Chroma Retention c 361 Delta a b Aab 361 207 0 0 Delta E 1931 AE Delta E 1994 AE 94 Delta E 2000 AE 2000 Delta E cmc AE cme Gamma G Contrast Factor full I ctr Contrast Factor truncated I ctr Brightness Factor full br Brightness Factor truncated br I color full re I color truncated I c salu eleleleleixiileilelejleieje Fig 16 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 33 Project The lt Project Variables gt tab contains variables used to calculate results for Variables an active project The
17. is no longer an accurate representation of the refer ence image The I method samples a photographic image as a uniformly spaced rect angular grid of elements so that the I statistics account for the specific in formation content in the scene For example a photograph containing an expansive blue sky would have a large statistical sampling of colorimetric data corresponding to the large area of sky reproduced in the photograph The contribution of the sky area to the overall I results would then be pro portional to the spatial area in the image occupied by blue sky I results are image dependent just as actual human observations change when viewing different photographs To evenly compare the performance of different imag ing systems therefore the same generic test target or set of pictorial images must be used in the I analysis The I method allows calculation of an entire data set or a chosen subset of the data called a region of interest Viewers often assign specific areas in a photograph with greater importance than other areas in the same photograph and will judge color and tone reproduction fidelity preferentially on the ac curacy retention in those regions A region of interest may be a specific range of colors and or tones e g scene highlights skin tones etc or a bounded geometric area within a scene e g a person s face in a portrait or the sky area in a landscape Skin tone reproduction is a particularly important r
18. model area the in formation palette displays corresponding values for each selected component and the corresponding column and row num bers The components list displayed in the information pallette may be customized to show only a desired subset of components Choose the desired options on the header of the Information Palette and choose desired Component options Toggling the major check box expands or collapses the list The I components are displayed in the target model as fractional values rather than percentages For example I c ranges from 0 to 1 0 not 0 to 100 User Guide Rev 2010 01 01 User Interface Target Model Window Create New Crop Save Target as jpg Save Target as wmf S Target Model 1 66 Accesses the Project Crops tab on the Preferences Page If checked the i Star application will fill the Crop table with patches falling within the min and max range defined on the Target Model win dow Saves the target model area view as a jpg file Saves the target model area view as a wmf file Fig 35 WIR i Star Professional Edition Version 7 2 Files File 1 Regions of interest Greens Use complete region 11 patch es of 84 Components Toggle Grid view G Memorize Geometry Shift Ctrl M L Show Main Window ete ES merkers Show Next Window Ctrl 30 Max 70 Min v 0 6 5 Col Row Name Value x 4190
19. targets and analysis techniques WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 4 I Metric and As are other color appearance models in use today the I metric is based Method Notes n CIE LAB colorimetry However the I metric is more suited to photo graphic tone reproduction analysis than conventional color difference models because in addition to analyzing the standard colorimetric attributes of hue chroma and lightness I metric can also analyze the changes in image con trast The I metric does not quantify how pleasing a final image appears to the viewer or how noticeable the visual differences are between an image and a reference image Rather the I metric quantifies how accurate the final color and tone reproduction state of an image persists under controlled conditions with respect to the initial image Color and tone reproduction accuracy does not necessarily correlate with perceived image quality For example if the reference image is perceived to be too dark and no change occurs when com pared with the final one then the I metric would return a 10096 accuracy rat ing because the image is still perceived precisely the same way If the same dark image were compared with its lightened version the viewer may find the lightened version more pleasing than the initial state However the I metric calculations would yield a lower accuracy rating i e less than 100 because the lighter image
20. 0 5 Default 0 5 False encoding truncation level 0 Default 0 Minimum quality level 36 0 Default 0 Fig 20 Chroma threshold Delta a b offset correction factor False encoding truncation WIR i Star Professional Edition Version 7 2 Sets threshold for the neutral gray color sector All patches with chroma values below 9 5 default are treated as part of the neutral gray color sector The Delta a b offset correction factor is added to the threshold value before the inclusion of a date point in the gray sector is deter mined Ensures that small instrumental measure ment errors do not result in I color cal culations less than 100 until the Delta a b value is outside the measuring de vice instrumental error range Used to compute the I c component User Guide Rev 2010 01 01 User Interface Main Window Project Variables Minimum quality level WIR i Star Professional Edition Version 7 2 38 To better understand the I c compo nent refer to the technical paper 1 The i Star application compares the I c data to the minimum Quality value and then computes the percentage of data less than or equal to this value The I cQC component represents the result of this calculation User Guide Rev 2010 01 01 User Interface Main Window Project Variables 39 The lt I total gt sub tab contains variables related to the calculation of I total values See
21. 01 Glossary Aslc formatted file slc file type Aslcm formatted file islem file type Aslcs formatted file Isles file type WIR i Star Professional Edition Version 7 2 80 The islc file format used to store crop in formation The islcm file format used to store color map information The islcs file format used to store charts settings information User Guide Rev 2010 01 01 81 Bibliography 1 Mark McCormick Goodhart Henry Wilhelm and Dmitriy Shk WIR i Star Professional Edition Version 7 2 lyarov A Retained Image Appearance Metric For Full Tonal Scale Colorimetric Evaluation Of Photographic Image Stabil ity presented at IS amp T s NIP20 International Conference on Digital Printing Technologies Salt Lake City Utah October 31 November 5 2004 User Guide Rev 2010 01 01
22. 2 no KL KC KH Fig 22 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 41 Project Regions of interest are defined areas in the test target image that satisfy Regions of Interest colorimetric or spatially filtered criteria The lt Project Regions of Interest gt tab contains information for fourteen default regions of interest set by Wilhelm Imaging Research Inc The present regions include one named Custom Crop and thirteen other custom regions of interest set by the user See Fig 23 Regions of interest can be defined 1n VO WA o Test 84 isf WIR T Star i Star Project Files View Windows Arrange Extras Licensed to Beta Tester General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence Add Remove Apply changes Import Export Name Lmin Lmax Hmin Hmax Cmin Cmax I ctr CtrQc r br Broc I tone ToneQC I clr clrge GpQC Gngc all Data Reds Yellows Greens Cyans Blues I Magentas Greys Highlights Midtones Shadows General Skintones Dark Skintones Light Skintones Custom Crop 0 10 75 187 25 562 20 20 56 0 100 75 187 25 562 100 55 100 100 0 60 120 180 240 300 IJ 0 0 0 35
23. 2010 01 01 User Interface Main Window The Main Menu Show Crops Page WIR i Star Professional Edition Version 7 2 13 ing of the target image map settings in an active project The shortcut is F5 Opens Preferences Page to allow edit ing of crop settings in an active project The shortcut is F6 User Guide Rev 2010 01 01 User Interface Main Window The Main Menu 14 The lt Windows gt drop down menu is always enabled See Fig 6 The menu does not however contain any menu items unless a view window has been opened When visible this drop down menu will show a list of open view windows in the active project Choosing an item will bring the cor responding window to the front Change the front window by pressing the shortcut Ctrl Activate the main window using the shortcut Ctrl Shift on any view window o WIR i Star Licensed to Beta Tester i Star Project FE Arrange Extras Spreadsheet 2 Spreadsheet 1 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window The Main Menu 15 The lt Arrange gt drop down menu is always enabled See Fig 7 Actions will not perform unless more than one window is open The menu contains the following items v WIRTStar Licensed to Beta Tester i Star Project Windows RUE Extras Cascade Windows Tile Horizontal Tile Vertical Tile Both Ways Minimize Each Window Normalize Each Window Maximize Each Win
24. 35 35 0 60 120 180 240 300 360 360 360 360 360 63 63 63 360 9 5 9 5 9 5 9 5 9 5 9 5 181 181 181 181 181 181 181 9 5 181 181 5 75 5 5 50 5 5 5 75 50 75 50 75 50 75 50 7 50 75 50 75 50 75 50 75 50 75 50 75 50 75 50 75 50 75 50 Fig 23 Mathematically Spatially WIR i Star Professional Edition Version 7 2 Regions are a specified range of colors and or tones Mathematically defined regions of interest are reffered to as re gions The user may create edit or re move the specific project regions Regions are a geometric area within the image Spatially defined regions of inter est are reffered to as crops The user may create edit or remove specific geo metric areas User Guide Rev 2010 01 01 User Interface Main Window Project Regions of Interest 42 The Project Regions of an Interest grid contains mathematical informa tion about every mathematical and spatial region stored in a project The grid includes minimum and maximum values of lightness hue chroma and endpoint criteria set for each region Further information regarding endpoint criteria sets can be found in the How To Interpret The Results chapter Region settings are either brand new or based on another saved prototype region set To create a region based on another prototype first click the cor responding row in the Project Regions of the Interest grid Mat
25. 7 2 User Guide Rev 2010 01 01 User Interface Main Window 17 Preferences The Preferences Page appears on the main window It can be accessed Page by the main menu i Star Preferences Without an active project the Preferences Page contains general parameters for the i Star application When an active project is opened the Preferences Page becomes a source of infor mation about the project parameters Only one Preferences Page will open per i Star application Depending on the version of i Star application the Preferences Page may contain a slightly different set of tabs The common tabs include lt General gt lt Project Info gt lt Project Components gt lt Project Variables gt lt Project Regions of Interest gt lt Project Crops gt lt Project Chart Settings gt lt Project Color Map gt lt Permanence gt permanence only WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 18 General Tab The lt General gt tab contains general preferences in the i Star application See Fig 9 The preference sub tabs include lt Application gt lt Directories gt lt Data Import Options gt lt Project Options gt lt Notification Options gt lt Themes gt lt Reports gt GWIR i Star licensed to Beta Tester i Star Project Windows Arrange Extras General Permanence Application Directories Data import options Project Opt
26. D 10 16 2007 INSTRUMENTATION Spectrophotometer Spectrolino Serial number 19227 MEASUREMENT SOURCE IlluminationzD50 ObserverAngle 2 DensityStd DIN ILLUMINANT D50 OBSERVER E FILTER STATUS DIN PRINT CONDITIONS NUMBER OF FIELDS 44 BEGIN DATA FORMAT SAMPLE ID SPECTRAL 380 SPECTRAL 390 rnin mara rammar Fig 37 The lt Spreadsheet gt window allows minimization of user action during the data file preparation process particularly for the xls file type when no pre installed spreadsheet application exists The lt Spreadsheet gt window found in the context menu contains the fol lowing items New File Creates a new spreadsheet saved as a xls txt or csv file format If the lt Spread sheet window contains an open file this command will disregard all unsaved changes and clear the window Open Data File Opens an xls txt or csv file Files are treated according to the literal extension Inconsistency between the existing format and the file extension may lead to unwant ed data interpretation WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Spreadsheet Window Save Data File Insert Column s Insert Row s Remove Column s Remove Row s Standard Column Width Standard Row Height AutoFit Memorize Geometry Show i Star W
27. S 31 Project Components doses pensado tei ebiao set rosa b rtu piso sabor ah 32 Project Vartabl8B Lusdisiseimavinien ei ox ois eco Du a nct 33 Project Regions of Interest Lusecc dade teet rri topo peas 41 luc ome AP er 43 PROJECUCOMGE Map 45 Project Chart SOLUS sssrinin uds dap denim uiua 48 PERSONS qunsrieusxctesiistuat adiens brodcbaliud af tasa arnein 51 Project DesctpHon Page sniesiienietiniiscnruiieneiniacri 53 Data Layout Pap ounsexniebalivtdraskibnipaedipasd med eire pdoM oadk bs 35 About Pase m 57 Chatts Window Aa c 58 Tareer Model WIBGON 22e cone Dedstecis irdi 63 PDF Report Preview Window csdecusssscaasncesecsxaveterchvsedaadaowateravedss 67 Spreadsheet Window sicvcscdagiadiietietsisiaadseneseneometsleinetonauddans 72 bus Aui e 74 How to Choose and Prepare a Target sssssssssss 74 How to Create a New i Star Intelligible Input File 74 How to Create a New 1 Star Project aesti eerte moet 74 How to Interpret the Results sess terri rt tot oso Sees prid an 60 Glossaiy En C 79 Bibliography 81 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 2 Introduction The WIR i Star v 2 0 software later in this manual also referred to as i Star the software the program or the application was created to perform calcula tions of I components in accordance with the theory and metric presente
28. User Guide Rev 2010 01 01 Glossary reference image final image test target patch sample test file data file project I components CIE LAB Asf formatted file Asf file type Aslr formatted file Aslr file type WIR i Star Professional Edition Version 7 2 79 The image considered to be ideal under conditions of the experiment A version of the reference image used to evaluate the image appearance fidelity The form of image specially prepared for a test The target contains a number of patches The graphics element of the test target separated from other elements of the tar get and characterized by specific color and a standard size Digital record of target properties stored in a file A set of test files grouped together in con text with the i Star application Upon saving information about all included test files is stored as an isf file format A set of variables calculated by the i Star application When referring to a specific set of variables it refers to the set of vari ables forming the I metric including I c I tone IcQC etc CIE 1976 L a b is one of the most com monly used color models Used to describe all colors visible to the human eye It was developed by the International Commis sion on Illumination The isf file format used to store project information The islr file format used to store region of interest information User Guide Rev 2010 01
29. WIR i Star Professional User Guide For Use With WIR i Star Professional Edition Fully Enabled Free Public Beta Version 7 2 2010 01 01 Powerful CIELAB based full tonal scale comparative image analysis software with sim plified single number or two number reporting of results Developed by Wilhelm Imaging Research WIR i Star also provides comprehensive analysis of image appearance differ ences with specific colors including critical human skintone colors or with user selected pictorial regions of interest in both color and black and white photographic images WIR i Star Professional Edition User Guide Revision 4 2010 01 01 WIR Software Development and Documentation Team Dmitriy Shklyarov chief programmer Yaw Nti Addae Kabenla Armah Mark McCormick Goodhart consultant Dimitar Tasev Henry Wilhelm Tessa Bergan editor and Carol Brower Wilhelm Copyright 2008 Wilhelm Imaging Research Inc All Rights Reserved Wilhelm Imaging Research Inc Grinnell lowa U S A istarcolor gmail com www wilhelm research com Contents PEON eerste cetgcbosieceNea e A E E E 2 I Metric and Method Notes sctocenbsetacctucsdexanhsstasrcswsceresececstouasseaieses 4 Before Getting St rt d srice arie i 5 lu ssairo M S 6 Main Window T H 7 The Main Men T 8 Preferences Pag ssrdsn neue a E S 17 ic Mr A er 18 Project Info sesira tad ee deie r Ge Dad Toon E
30. WIRTStar licensed to Beta Tester tStar Project Ei Windows Arrange Extras General Permanence Application Directories Data import options Project Options Notification options Themes Reports Notification options v Always remind about the D min and D max settings v Always report project creator information No Active Project Fig 12 Use audio notification Yes No Forces the i Star application to accompa ny all important messages with a system sound Always remind about the D min and D max settings Yes No Forces the i Star application to remind the user about defining D min and D max set tings in a project This reminder appears immediately after the Create New Proj ect procedure has been completed WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 29 The lt Themes gt sub tab contains adjustable options which control the ap pearance of the i Star application See Fig 13 Two standard backdrops are available for each chart The user may also choose an external file to be used as a custom backdrop An external file is linked to the i Start application but not embedded permanently v WIRTStar Licensed to Beta Tester Star Project Nj Windows Arrange Extras General Permanence Application Directories Data import options Project Options Notification options Themes Reports Chart backdro
31. Z CREATED 10 31 2007 Set data type to LAB Set data range INSTRUMENTATION Spectrophotometer Spectrolino Serial number 19227 ILLUMINANT D50 OBSERVER x aes FILTER STATUS DIN PRINT CONDITIONS NUMBER OF FIELDS 44 BEGIN DATA FORMAT SAMPLE ID SPECTRAL 380 SPECTRAL 390 SPECTRAL 400 SPECTRAL 410 END DATA FORMAT BEGIN DATA emn Fig 29 If the file contains more than one data type the application treats these formats in the following sequence Spectral Data XYZ Data LAB Data Manual changes of data type is possible Using the grid context menu se lect the desired type of data Next select a range of data on the grid and mark this data range using the context menu WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Data Layout Page 56 After verification of data choose the Proceed button or press the Dis card button and return to the previous application page Manual modifica tions of any data will create a new i Star readable file reflecting the chang es Modify the name and location of this file under the Correct File Name field WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 57 About Page The About Page gt is accessed from the main menu by clicking i Star About i Star See Fig 30 The i Star application version other related relea
32. aluate the trend of tonal accuracy WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 Working with i Star 76 The I metric finds the patches most affected by the light levels and creates a graph with the trend The trend line reference file will always be a straight line equivalent to the f x x function The trend line representing a compared file will either be a straight line or it will contain aberrations resulting from artifacts on the image A straight trend line signifies a test file that does not calculate major chang es in tonal accuracy Instead a shift of lightness or change of the dynamic range may have occured Artifacts on a trend line will normally result from aberrant object shapes on the test image The Hue Angle Distribution chart evaluates the hue shift of each individual patch and the overall image tint The graph trends reflect the change of patch hue from the reference image to the compared image The major lines on the graph show the overall image tint This chart helps to evaluate the color ac curacy in the project The Component Histograms chart displays valuable information of result distribution for individual patches of the target image See Fig 38 Though the I component results may seem acceptable a non Gaussian distribution on the Component Histograms chart would result in a downgrade For ex ample even when two projects have comparable I results a project with a distribu
33. and maintained for the application This folder must satisfy the following requirements have at least 64 MB available free space e beon a user accessible write enabled location Running the application from a zipped package a CD DVD a locked flash drive or a flash drive with insufficient capacity temporary OS instability and or application crash may occur If more than one version ofthe i Star application exists on the computer be sure the associated isf file is used when opening the project files Note that on Microsoft Windows Vista systems the i Star application must be run with administrator privileges every time this option is being set Also please note that the application works with only one project at a time To work with more than one project simultaneously launch multiple instances of the i Star application WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 6 User Interface The user interface of the i Star application includes the main window and four view windows Charts Target Model Results and Spreadsheet The i Star application uses a variety of context menus Many controls have a specific set of actions made available with a right click on that control Fur ther information regarding these actions is given in the next chapters When the i Star application is executed the program main window appears Main Window e WIRTStar Licensed to Beta Tester i Star Project Ei y
34. d in the technical paper titled A Retained Image Appearance Metric For Full Tonal Scale Colorimetric Evaluation Of Photographic Image Stability 1 and as calculations for some other common colorimetric functions The results of these calculations help to evaluate the reproduction accuracy i e retention of color lightness contrast of the final image with respect to a reference image The i Star application will both calculate and graph these results Depending on its version the program can be used in a wide variety of the areas dealing with image representation transformation and preservation A few examples of the possible software applications include e In the field of the image permanence studies the application can cal culate a series of results for a number of images representing the same photo graphic print over time and graph the loss of accuracy as the print ages nthe field of color accuracy studies i Star can be used as a proofing evaluation tool comparing aspects like tonal reproduction accuracy of an im age manufactured using print system A to the same image manufactured using print system B Regarding the different possible applications of the program the reference and final image can be presented in one the following forms e file a content of an image file e print an image printed on some media view an image displayed by an electronic output device such as a monitor Any of these image form
35. d or removed from a project by clicking on Files Add to Project and Files Delete from Project To select files for removal click on the corresponding tab or row of the Project Description table Files may only be added or removed one at a time The position of any file except the reference file can be modified by click ing on the corresponding row of the Project Description table and then choosing Files Move Up or Files Move Down Depending on the version of the software the Project Description table may have cells which specify the project time data Entering time data for a file can be accomplished in two ways Use the WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Description Page 54 date time shortcut to insert the computer clock time into the Time Started and Time Stopped columns Additionally manual insertion of the date time values with proper format is possible The date time preference settings are found in the lt General gt tab on the Preferences Page Enter stopwatch timer values in the Timer Started and Timer Stopped columns When both sets of date time data are entered the i Star application will check for a discrepancy larger than the threshold value set in the Timer verification box of the Permanence tab The File tabs open calculated data sets for individual files
36. dow No Active Project Fig 7 Cascade Windows Organizes the open project windows in a cascade Tile Horizontal Tiles the open project windows horizon tally Tile Vertical Tiles the open project windows vertically Tile Both Ways Simultaneously tiles the open project win dows horizontally and vertically Minimize Each Window Minimizes all open project windows Normalize Each Window Normalizes all open project windows Maximize Each Window Maximizes all open project windows WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window The Main Menu 16 The lt Extras gt drop down menu content depends on the version of the i Star application See Fig 8 The generic i Star version contains the fol lowing menu items v WIRTStar Licensed to Beta Tester i Star Project Windows Arrange aces Spreadsheet CtrheE Download Acrobat Reader No Active Project Fig 8 Spreadsheet Creates a new spreadsheet window The shortcut is Ctrl e Target Builder Launches the Target Builder executable an optional utility when present in the drop down menu Download Acrobat Reader Opens default web browser to Adobe web site to obtain a copy of the Adobe Acrobat Reader Adobe is necessary for viewing the PDF formatted supplemental docu ments included in the i Star application package WIR i Star Professional Edition Version
37. egion of interest example A region of interest can be further evaluated by including or excluding the worst 1096 data from within the specified region WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 5 Before Getting Check the computer specification The following configuration or better Started is recommended Processor Pentium IV Class running at 2 80 GHz Memory 512 MB or more Display Resolution 1240 x 1024 pixels or higher OS Windows XP A large sized monitor or a multi monitor system would be beneficial and is highly recommended Some versions of the software require the use of a USB dongle that is shipped with the software Should the software version require a USB dongle be sure to execute install drivers bat located in the root folder of the CD con taining the i Star application before starting the application for the first time Additionally this version of the software will corrupt the preferences file if an attempt to run the application without the dongle is made Should this occur remove AppDef isf located in the application folder and restart the i Star application The restart will also reset all i Star related preferences to factory defaults Therefore once configured and in use restart is not recommended To run the i Star application execute iStar exe It is recommended that this file be placed in a separate folder because a number of configuration files will be created
38. emes to change the backdrop WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Charts Window Use time scale X axis Y axis Components Step interval Single patch WIR i Star Professional Edition Version 7 2 61 When checked the style of the chart X axis is defined Offers four X axis unit options See the results report options at Preferences General Project Options for more infor mation Allows choice between percent value and actual numerical value to scale the Y axis Allows selection ofthe components shown on the chart Varies the width of the bin used on the X axis to chart the component histogram Allows choice of one patch from the test target by selecting a column and row The spectral data for that patch the initial color the reference measurement data the and final color corresponding to the last plot ted measurement is then displayed The initial color is displayed in the left box the final color is displayed in the right box User Guide Rev 2010 01 01 User Interface Charts Window 62 See Fig 33 Select one of the following chart types from the context menu found on the control panel I Component Results Tonal Reproduction Hue Angle Distribution Component Histograms Component Development Spectral Distribution Interpretation of these chart types is available on the Wilhelm Imaging
39. ens the user manual in default PDF viewer The shortcut is F1 Shows hides the preferences page The first click shows the preferences page for an active project A second click hides the preferences page The shortcut is F2 Shows the panel with information about the 1 Star application version release date and a hyperlink to the www wilhelm re search com website The shortcut is F3 Command to close the i Star application The shortcut is Ctrl q User Guide Rev 2010 01 01 User Interface Main Window The Main Menu The lt Project gt drop down menu is always enabled See Fig 3 v WIRTStar Licensed to Beta Tester Windows Arrange Extras Create New Ctri N Open Project Cro No Active Project Fig 3 Create New Open Project Save Project Close Project Save Project As WIR i Star Professional Edition Version 7 2 Creates a new project The shortcut is Ctrl n Opens a project stored as an isf file The shortcut is Ctrl o Option becomes enabled only when there is an active project Saves the active project in the source isf file The shortcut is Ctrl s Option becomes enabled only when there is an active project Closes the active project The shortcut is Ctrl w Option becomes enabled only when there is an active project Saves the active User Guide Rev 2010 01 01 User Interface Main Window The Main Menu Recalculate Project WIR i Sta
40. est Project Crops Project Color Map Project Chart Settings Permanence Black point Lmin White point Lmax C Defined by user 1 C Defined by user 99 Defined by image Defined by image C Defined by map Defined by map Black patch marker Mark all Mark selected Apply changes Mark extreme within t Yo Un mark all Un mark selected ja J2 Ja J4 5 e a N a EE Fig 25 Depending on the use of the program the dynamic range may be defined in one of the following ways Defined by user When values of Lmin and or Lmax are not certain the dynamic range may be ex tended beyond the actual range of the tar get image This is necessary for projects involving pictorial images Defined by image To calculate the dynamic range of an im age as an interval between the darkest and lightest point the values of Lmin and Lmax are found automatically in the refer ence target image Defined by map The dynamic range may also be defined as an interval between the average values of WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Color Map 46 both the Lmin and LMax of a selected set of patches in the target image Mark the group of patches on the color map with the white patch marker and click the Apply Changes button The averaged L value for the selected group of patches becomes the Lmi
41. ev 2010 01 01 User Interface Main Window Preferences Page Assume that the illuminant is the same Yes No Assume that the observer is the same Yes No Assume that the white base is the same Yes No Assume that the filter is the same Yes No Import multiple files Yes No Use file created date and time as a time stamp Yes No WIR i Star Professional Edition Version 7 2 24 Allows the DIA engine to assume that the import file contains a target using the same illuminant name as the reference target Allows the DIA engine to assume that the import file contains a target using the same observer name as the reference target Allows the DIA engine to assume that the import file contains a target using the same white base name as the reference target Allows the DIA engine to assume that the import file contains a target using the same filter name as the reference target Allows the import of multiple files simul taneously The system will not allow im port of multiple files if the Import Only User Confirmed Data option is checked or Use Assumptions When Importing Data Files is not checked Automatically includes creation date and time of the imported file into the table on Project Description page User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 25 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01
42. file The Import button loads a selected islc file to the crops grid Any number of islc files may be stored To edit a pre set crop first select its name in the crops drop down list The set of patches in the prototype will appear on the crop grid After necessary changes click the Apply Changes button To remove a pre set crop first select the name in the crops drop down list The set of patches in the prototype will appear on the crop grid Click the Remove button The selected crop will be removed from the Project Crops drop down list and Project Regions of Interest grid The Export and Import buttons placed on the lt Project Crops gt tab help to ease the transition of data from one project to another Any number of custom defined crops may be stored outside the program and imported when needed By clicking the Export button information is saved from the crops grid to an external file with the islc extension Clicking the Import button will load the content of a selected islc file into the crops grid WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 45 Project Color Map The lt Project Color Map gt tab allows defining of the dynamic range of im S Test 84 isf WIRTStar Licensed to Beta Tester iStar Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Inter
43. functions Exponential Exponential EW Line Logarithmic Polynomial 2 Polynomial 3 Polynomial 4 Polynomial 5 Polynomial 6 Power Spline The default function is spline The spline connects each data point to the next with a straight line Specify the color of the date points and trend lines for each plotted file by first selecting the corresponding cell in the table Then choose a color from the color picker located in the General settings group The Tonal Reproduction Component Histograms Hue Angle and Spec tral Distribution box allows specificity of the Tonal Reproductions Compo nent Histograms Hue Angle and Spectral Distribution settings Include any files to be plotted by clicking the check boxes in the Dist and Trend columns of the Files table Specify the graphing method for each component plotted on the chart i e no plotting only data points only trend line or both data points and trend line For each file on the Tonal Reproduction chart specify the mathematical function used to build the trend line The default setting is Line for the reference file because the trend line will always be straight for this file and Polynomial 6 for all other files On some occasions it is recommended to lower the degree of the polynomial function for a better fitting graph Specify the color of data points and trend lines for each plotted file by first selecting the cor
44. heck box on the Summary page defines whether the PDF report is created in the collector folder The lt Date gt field on the Summary page specifies the creation date of the PDF report The lt Supplimental Information gt field on the Summary page allows the addition of report specific comments The lt Include Limitations gt button on the Summary page allows the addi tion of copyright legal information into the report comments The lt Memorize this Information gt button on the Summary page allows memorization of the Supplimental information field for future use in the cur rent project The lt Reference Target notes gt field on the Target Info page allows the ad dition of notes about the reference target and test conditions The lt Memorize this Information gt button on the Target Info page allows memorization of the Reference Target Notes field for future use in the current project The lt X axis units gt radio group on the Results page allows specification of units Test duration Exposure Display time Adjusted time for results of the i Star component calculations WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface PDF Report Preview Window 71 The Comments field on the Results page allows the inclusion of extra notes The Comments field on the Results Worst 10 page allows the inclu sion of extra notes The test gt field on the Interpolation page allows poin
45. hematical values defining the prototype will appear in the edit grid After necessary corrections have been made save the region by clicking the Add button The new region must have a unique name To create a brand new region first enter the mathematical values into the edit grid to define the region After all necessary information has been entered save the created region by clicking the Add button Once again the new region must have a unique name To edit any user defined regions first click on the corresponding row in the Project Regions of the Interest grid The mathematical values defining the region will appear in the edit grid After necessary changes save by clicking the Apply Changes button The i Star application will create a new region if the name of the user defined region has been changed Editing any of the fourteen default regions of interest is not allowed To remove the user defined regions first click on the corresponding row in the Project Regions of Interest grid The defined mathematical region val ues will appear in the edit grid Delete this region by clicking the Remove button Removal of any of the fourteen default regions of interest is not al lowed The Project Regions of Interest grid also contains Export and Import buttons to move region data from one project to another The Export but ton allows data from the edit grid to be saved to an external islr file The Impo
46. her brand new or preset crop settings may be used To create a crop based on a prototype select the name in the drop down list The crops grid will show the set of patches forming the prototype After necessary corrections save the newly defined crop by clicking the Add but WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Crops 44 ton The new crop must have a unique name To create a brand new crop select the Empty choice in the drop down list The crops grid will be cleared of marks Input new data and press the Add button The new crop must have a unique name To edit any pre existing crops first select the name in the crops drop down list The crops grid will show the patches forming the prototype After neces sary changes save by clicking the Apply Changes button To remove any of the user defined crops first select the name in the crops drop down list The crops grid will show the set of patches forming the proto type Delete this region by clicking the Remove button The crop removal will be reflected both on the crops drop down list and the Project Regions of Interest grid The Custom Crop cannot be removed The lt Project Crops gt tab contains Export and Import buttons used to move data from one project to another The Export button allows data from the crops grid to be saved to an external islc
47. hes dis played in the target model area because the calculation depends on user settings This is especially true when white border patches are included in the calculations Used in conjunction with the Compo nents and Min and Max edit boxes By selecting a component I c I tone AE L etc and the show markers check box the target model area will display arrow mark ers on the patches These markers iden tify which patches have numerical values less than the minimum or greater than the maximum values entered in the Min and Max edit boxes Unmarked patches fall within the specified range for the chosen component The number of patches found in each of the three intervals is displayed nearby Minimum and maximum default values for each component are preset in User Guide Rev 2010 01 01 User Interface Target Model Window Min and Max boxes Information palette WIR i Star Professional Edition Version 7 2 65 the Min and Max edit boxes Manual ad justment of these values is possible The I components are displayed in the target model as fractional values rather than per centages For example I c ranges from 0 to 1 0 not 0 to 100 Enter the appropri ate fractional values in the Min and Max edit boxes Used in conjunction with the Show mark ers and Components See the descrip tion above labeled Show markers When the pointer is dragged over a spe cific patch in the target
48. indow Show Next Window WIR i Star Professional Edition Version 7 2 73 Saves information present in the lt Spread sheet gt window as xls txt or csv file for mat Inserts the same number of columns as the selected area of a spreadsheet Inserts the same number of rows as the selected area of a spreadsheet Removes columns in the selected area of a spreadsheet Removes rows in the currently area of a spreadsheet Sets the width of each column to a stan dard value in a spreadsheet Sets the height of each row to a standard value in a spreadsheet Automatically sizes columns to fit the data content Memorizes current location and size of the window on the screen When a new spreadsheet window is opened in a proj ect it will be created based on the memo rized geometry information The shortcut is Ctrl Shift m Activates the application main window The shortcut is Ctrl Shift Activates the next window from the win dow list The shortcut is Ctrl User Guide Rev 2010 01 01 74 Working This chapter explains how to perform several basic operations and neces with i Star sary tasks for the successful operation of i Star How to Choose and Prepare a Target Depending on the intended use of the program choose an appropriate tar get or set of targets for testing Most tests will not need any other than the provided i Star target The 800 patches provide a comprehensive u
49. ing style short Custom Create PDF Report Target Name Test Target 84 Printer Printer A Create PDF Report and Print Ink Standard Inkset Media Media A Condition name The following supplemental information has been added to report Wilhelm Imaging Research Inc 713 State Street P O BOX 775 Include Limitations sequaiajaiy satu eax syeyd paepuers 360 iso uonerodaenut 9601 1510m suNsey ys ueni suey sageueA ousa 8691 AeUWINg Memorize this information Grinnell lowa 50112 U S A 2007 Wilheim Imaging Research Inc WIR Test 84 ist_report_2007_12_14 pdf Fig 36 page Information for each project may be separated into thirteen categories Summary Target Info Test Info Variables Regions of Interest Criteria Set Results Worst 10 Interpolation Worst 10 Standard Charts Extra images References WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface PDF Report Preview Window 68 Including these categories in a final test report is possible by clicking the check boex found on the top right of the lt PDF Report Preview gt window Ac cess the report page information by clicking on one of the thirteen buttons The 1 Star application provides three preset reporting options located be low the category control groups The three options include Complete Report Wilhelm Imaging Style sh
50. ions Notification options Themes Reports Application preferences Restore default preferences Restore preferences from AppDef Memorize preferences in AppDef Save preferences in AppDef when closing application IV Always keep preferences after closing project IT Use i Star as default reader For isf files v Use screen resolution correction No Active Project Fig 9 The Application sub tab contains the following adjustable options Restore default preferences Restores the content of the Preferences Page to default conditions Restore preferences from AppDef Restores content ofthe Preferences Page from AppDef file This action will reset current project settings to settings previ ously memorized in the AppDef file WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page Memorize preferences in AppDef Save preferences in AppDef when closing application Yes No Always keep preferences after closing project Yes No Use i Star as default reader for isf files Yes No WIR i Star Professional Edition Version 7 2 19 Saves current content of the Preferences Page to an AppDef file Controls the content rewrite of the AppDef file Controls the i Star application reset of content on the Preferences Page When left unchecked standard settings from AppDef file
51. ions of Interest Project Crops Project Color Map Project Chart Settings Permanence Test conditions Light level Lux Light cycle hrs day Temperature C Relative humidity RH Gas concentration ppm Predictions for Light level Lux Timer verification 2 The Time Timer difference requires p verification if greater than 24 d Light cycle hrs day Gas fading adjustment 1 Extra adjustment Fig 27 Test conditions Contains environmental conditions of the accelerated test applied to all targets a project These conditions may include light level Lux light cycle duration hours per day temperature C relative humidity RH and gas concentration ppm Predictions for Allows environmental conditions to be set for predictive purposes These condi tions may include light level Lux light cycle duration hours per day gas fad ing adjustment a defined coefficient and extra adjustment another defined coef ficient primarily used for reciprocity law failure Timer verification Sets a threshold for verification of the time WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Permanence 52 and timer stamps when the values differ on a project description page Test time data for each file can be entered into the project description table as real time in the standard timestamp format and or as st
52. j Windows Arrange Extras No Active Project Fig 1 When no projects are open the main window provides access to the gen eral panels via the main menu See Fig 1 An active project uses the main window as a source of all project data and the project control center The main window contains a status bar indicating the status of the load and save processes and the project status When a project is opened created ad ditional controls such as the project page and several preferences tabs become accessible WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 7 The Main Menu The main menu provides the major controls of the application It contains the following drop down menus lt i Star gt lt Project gt lt Files gt lt View gt lt Windows gt lt Arrange gt lt Extras gt When the i Star application is open and there are no active projects some drop down menu items are disabled These menu items become enabled when a project is opened WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window The Main Menu The lt i Star gt drop down menu is always enabled See Fig 2 nz Project Windows Arrange Extras Help Fi Show Preferences page F2 Show About page F3 Quit Ctri Q Fig 2 Help Show Preferences page Show About page Quit WIR i Star Professional Edition Version 7 2 Op
53. mat The following controls may be accessed depending on contents of the graph shown in the central frame Region of interest Allows selection and viewing of results for a particular region of interest defined in the Parameters window Statistical Selection This groupbox contains the use complete region and use the latest measurement distribution relative checkboxes When the use completed region is chosen av eraged results for the chosen region of in terest are graphed When unchecked the worst 10 of data from the chosen region will be graphed Depending on the chart type an additional check box labeled use the latest measurement distribution rela tive may appear This check box posts filtered data for each file in absolute or relative terms Absolute terms plot data representing data fitting filter criteria for each file When relative terms are used the data is first screened according to the filter criteria and then tracked as a subset over the project Absolute versus relative statistical terms allow for change in color patches still fitting criteria from different files For example what may have been the worst 10 of patches in the second file may differ from those comprising the worst 10 in the third file etc Show legend When checked a legend box is added to the chart Show backdrop When checked the backdrop is shown Go to Preferences General Th
54. n Calculate the Lmax value simi larly When the target image has at least one white patch and the Lmax is calculated using Defined by map choose to extend the target with an artificial border for the I tone calculation Even if the Nearest Neighbors map includes all eight adja cent patches this allows a calculation of the I tone component for patches located on the outer perimeter of the image target The L value average for all patches de fined as white in the Color Map grid will substitute missing L value information for non existing neighbors The controls including Mark all Un mark all Mark selected Un mark selected and the White patch marker Black patch marker drop down list helps to change the selection of the Color Map grid patches marked with W as white or B as black to form the color map Select or unselect one patch in the color map grid by a double click The patch will remain marked according to the White patch marker Black patch marker drop down list The location of the selected patch and its value of lightness is available in the status bar of the main window Change the color map by clicking on the Mark extreme button All patches within the set percent age from the minimal L value of the image as black patches and the maxi mum L value of the image as white patches will be marked Confirm the selection of black and white patches by clicking the Apply changes
55. nderstand ing of all major color groups from the sRGB Color Space Although 800 patches is sufficient for most evaluations the more patches the more precise the results i Star does not limit the target choice Modification of the target to test a certain area of color space can be done 1 Star will process pictorial targets but creating them is a rather advanced procedure requiring the ability to downsample images The downsample procedure is not explained in this manual How to Create a New i Star Intelligible Input File i Star will best process data input formats originating from Gretag Mac beth Spectro Chart and Measure Tool If data originates from software other than these pre format the data before proceeding This function is helpful when data files will not open from the Data Layout page When data is avail able on the Data Layout page use page controls to specify input data Tem plates for creating i Star compatible input data Spectral LAB and XYZ are provided To begin open the appropriate template provided with the program Tem plate iStar lab Template iStar xyz or Template iStar spec Use the em bedded spreadsheet utility or a different spreadsheet program Next feed the data into this file How to Create a New i Star Project To create a new project select the Project Create New item from the application main menu The Add File to Project dialog will open then select the reference file Depending
56. o Instructs the i Star application to create a PDF Report at a specified collector folder selected by the user Always create report at project folder Yes No Instructs the application to create a PDF Report in the same directory as the corre sponding isf file Note The project must be saved before creating a report When both options are enabled the 1 Star application will create two identical re ports in the different locations WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 31 Project Info The lt Project Info gt tab contains information about data files collected by the Data Import Assumptions DIA engine during file import saves notes about files and allows for file origin specifications See Fig 15 Additional project information including the project number sample number job num ber target file name reading device and project observations are stored in this tab The Export and Import buttons allow the ability to save and load project information into a text file This process makes integration of similar projects easier v WIRTStar Licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence Project ID Project Number Sample Number Sample 1 Set of pr
57. of project data files The reference file is always first on the list The shortcut is Ctrl Down WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window The Main Menu 12 The lt View gt drop down menu becomes enabled only when there is an ac tive project See Fig 5 w Test Target 84st WiRi Star Licensed to Beta Tester i Star Project Files Windows Arrange Extras Charts Window Ctri G Target Model Window Cte T n PDF Report Preview Window CtrleR Time Started Timer Stopped Timer Started Exposure Time Total Exposure 0 Show Regions of Interest page F4 200706 11 42 NA Show Crops page 2007 10 23 09 53 166 183 166 183 Show Color Map page 2007 10 31 09 10 191 283 357 466 2007 41 06 11 27 2007 11 06 11 27 146 203 503 749 2007 11 13 09 50 2007 11 13 09 50 166 383 670 132 2007 41 27 14 49 2007 11 27 14 49 340 983 1011415 Fig 5 Charts Window Creates a new chart window The shortcut is Ctrl g Target Model Window Creates a new target model window The shortcut is Ctrl t PDF Report Preview Window Creates the PDF Preview Window The shortcut is Ctrl r Show Regions of Interest Page Opens Preferences Page to allow edit ing of the regions of interest in an active project The shortcut is F4 Show Color Map Page Opens Preferences Page to allow edit WIR i Star Professional Edition Version 7 2 User Guide Rev
58. ojects number Job number Job 1 Import Target ID Target Filename Test Target 84 Reading device 001 Export File legends Name Date 1 Samplei MNOOQ xls 2007 10 16 11 42 2 Sample2 MNO001 xls 2007 10 23 09 53 File origin File info Data type Data specifics Output device Printer A c Illuminant A Inkset Standard Inkset a Observer Media Media A White Base Test condition Filter File notes Project observation Fig 15 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 32 Project The lt Project Components gt tab contains the table with information about Components components tracked and or calculated by the i Star application See Fig 16 Each component included in the Project Components grid has a corre sponding tab on the project page where results of the calculations have been stored The name of the project page tab can be found in the Tab Name col umn of the Project Components grid The grid holds the absolute minimum and maximum values for each component and defaults found in the Target Model window The markers identify patches above below and within a selected range The Spectrum L source A source and B source items in the table are values stored by the i Star application not calculated components All information in the Project Components
59. on the preferences one of the following scenarios will occur 1 The i Star intelligible reference file is automatically imported 2 The i Star application needs user confirmation or cannot extract all the necessary information from the input file After specifying all necessary in formation on the Date Layout page proceed with importing the data file WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 Working with i Star 75 To add more files to a project select the Files Add to Project item from the main menu and follow the instructions How to Interpret the Results After including at least two data files in a project set up the project prefer ences and calculate the project results The most general results can be ob served via the Charts window in visual form or via the Results window in table form When operating with the Charts window utilize the I Component Results chart The points I total I c I tone etc plotted on this chart are scaled between 0 and 100 where 100 represents a perfect retainment quality with regard to the reference image and 0 reflect complete inaccuracy Con versely a perfect score for the quality control components is 096 while a value of 10095 reflects complete inaccuracy with the corresponding image The display of the I total graph for the All Data region of interest provides the most direct information about overall image fidelity More definite
60. options Gives the ability to specify the reference category of project files Also sets the decimal precision of the result calcula tions Result report options Contains default settings for time related result reporting The following choices are available WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page WIR i Star Professional Edition Version 7 2 Hours Kilolux hours Display years Adjusted years 27 Time is shown in hours Often used in light fading when the scale is based on exposure of 1 kLux hr The value depends on the light level setting in the test conditions group on the Perma nence Tab of the Preferences Page Calculates predicted display years using light level and light cycle settings found in the predictions group on the Permanence Tab of the Preferences Page Allows the user to set a correction factor for gas fading when determining predicted display years The correction factors are set in the predictions group on the Per manence Tab of the Preferences Page When used the application reports ad justed years rather than display years User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 28 The lt Notification Options gt sub tab contains adjustable options control ling i Star application notifications See Fig 12 v
61. opwatch timer values When both methods are used for the same file the i Star application will crosscheck the two valuess and alert the user when the time discrepancy is greater than the timer verification value Measurement data cells with dis crepancies are highlighted red The threshold value is a percent value with a default set at 2 When a discrepancy exists within the threshold percentage value the i Star application will rely on the stopwatch timer data and will ignore the time stamp data WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 53 Project Description The Project Description Page gt appears when the i Star application opens Page an existing project or the setup for a new project is complete The project page uses a tab arrangement to organize project data and individual project file results See Fig 28 S Test 84 isf WIRTStar licensed to Beta Tester i Star Project Files View Windows Arrange Extras Project Description Fie1 File2 File Time Stopped Time Started Timer Stopped Timer Started Exposure Time Total Exposure 4 File 1 NA 0 0 2 File 2 2007 10 23 09 53 f ft E i 0 166 183 166 183 s Add to project Delete from project Move up Move down Fig 28 The Project Description tab opens the test description page containing a list of files included in the project and allows the timer data entry Individual files may be adde
62. ort Report Custom Report The Complete Report and Wilhelm Imaging Style short Report are not modifable To modify the Custom Report click the Memorize Report presets button or follow the Preferences Page interface The lt Summary gt tab contains essential information for observation of the test report The lt Target Info gt tab contains information regarding the target used in the test The lt Test Info gt tab contains information regarding physical aspects of the procedure performed during the test time The lt Variables gt tab contains observations of the variables used in calcula tions of the test results The lt Regions of Interest gt tab contains information about regions of inter est specified for the current test The lt Criteria Set gt tab contains threshold values for each of the major 1 Star components used to analyze the image retention The lt Results gt tab contains average calculation results of the major i Star components for each region of interest The lt Worst 10 gt tab contains calculation results of the major 1 Star components averaged for the worst 10 of each region of interest The lt Interpolation gt tab contains interpolated calculation results of the major i Star components for each region of interest at a chosen phase of the test The lt Worst 10 gt tab contains calculation results of the major i Star com WIR i Star Professional Edition Version
63. ps Choose the chart to customize its backdrop image I components results Image Wilhelm Imaging style C 50 gray External file No Active Project Fig 13 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page 30 The lt Reports gt tab contains information about PDF Report presets See Fig 14 These presets define the content of a PDF report The two check boxes define the creation location of the PDF Report file S Test 84 isf WIRTStar Licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence Application Directories Data import options Project Options Notification options Themes Reports Browse Always create report at collector folder C Documents and Settings user02 My DocumentslReports w Always create report at project folder PDF Report Preview presets Report Presets wilhelm Imaging style short Complete Report Report Pages Iv Summary v Target Custom IV Test Info Variables M Regions Criteria Set M Results Worst 10 Rest Iv Interpolation Worst 10 Inter Iv Standard Charts Extra Images References Accept Fig 14 Always create report at collector folder Yes N
64. ptions gt sub tab contains adjustable options controlling the data import process See Fig 10 The following options are available for the Create Project procedure when files are added using the Add Project procedure o WIRiStar Licensed to Beta Tester FStar Project Windows Arrange Extras General Permanence Application Directories Data import options Project Options Notification options Themes Reports Vv Import only user confirmed data T Use assumptions when importing data files Data files import assumptions Import multiple files IV Use file created date and time as a time stamp No Active Project Fig 10 Import only user confirmed data Yes No Forces the i Star application to show the data layout page before importing data regardless of Data Import Assump tions DIA engine results This option protects from importation of incorrectly interpreted data Accept projects with stable conditions only Yes No Allows data import only if critical parameters of the target e g geometry sequence of patches illuminant observer white base filter etc are in compliance with the project reference target When WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Preferences Page Use assumptions when importing data files Yes No Assume that the target geometry is the same Yes No Assume
65. r Professional Edition Version 7 2 10 project in a new isf file The shortcut is Ctrl Alt s Option becomes enabled only when there is an active project Recalculates the I results for the active project The shortcut is F7 User Guide Rev 2010 01 01 User Interface Main Window The Main Menu 11 The lt Files gt drop down menu becomes enabled only when there is an ac tive project It operates using data files from the active project See Fig 4 Test Target 84 isf WIR i star Licensed to Beta Tester i Star Project geal View Windows Arrange Extras script Add to Project Ctri A ie5 Fies Delete from Project Ctrl D Move Up Ctri up Stopped Time Started Timer Stopped TimerStarted Exposure Time Total Exposure Move Down Ctrl Down 200706 11 42 NA 2007 10 23 09 53 2007 10 23 09 53 166 183 166 183 2007 10 31 09 10 2007 10 31 09 10 191 283 357 466 2007 11 06 11 27 2007 11 06 11 27 146 283 503 749 2007 1113 09 50 200711413 09 50 166 383 670 132 2007 11 27 14 49 2007 11 27 14 49 340 983 1011 115 Fig 4 Add to Project Adds a new data file to the active project The shortcut is Ctrl a Delete from Project Deletes the selected data file from the ac tive project The shortcut is Ctrl d Move Up Moves a file up in the list of project data files The reference file is always first on the list The shortcut is Ctrl Up Move Down Moves a file down in the list
66. responding cell in the table Then choose a color from the color picker located in the General Settings group The General Settings group allows modification of the date point size and the width of the plotting lines for new charts Specify whether the legend and the backdrop should be displayed and determine the X axis style display WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window Project Chart Settings 50 ing time units or file numbers The color picker as explained earlier is also located in this group The Export and Import buttons located on this tab help move data from one project or chart only to another The Export button allows data to be saved from the Project Chart Settings gt tab to an external islcs file The Import button loads a selected islcs file to the lt Project Chart Settings gt tab Any number of islcs files may be stored The Restore Defaults button sets all controls on this tab to default values WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 51 Permanence The lt Permanence gt tab contains preference settings related to the calcula tions of permanence analysis See Fig 27 Test 84 isf WIRT Star licensed to Beta Tester i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Reg
67. results can be retrieved from observation of the I c I tone graphs The I c graph trend displays the change in color accuracy The I tone trend displays the change in tonal accuracy In most cases the graphs of I c and the I c components look the same Likewise the graphs of I tone and I tone look the same If trends in these graph pairs split the i Star application has discovered artifacts patches with the I c or I tone values not meeting requirements of the quality control Rely on graphs of the truncated components I c and I tone if the project results are to be com pared with results of other projects The presence of an artifact is a valuable result in itself An artifact unveils serious quality loss on the tested image Refer to the Target Model gt window to uncover the nature of the quality loss and localize the artifact patches To locate the most deviant artifacts graph the I c I tone and qual ity control points of the worst 1096 of the data In a project where artifacts have been found the worst 1096 results may drastically differ from the com plete region results Create a new region of interest to retrieve more specific results Observation of results from other regions of interest help to localize the sources of quality loss If the target does not include patches of the defined regions of interest data for those regions will not be plotted and evaluated The Tonal Reproduction chart helps to ev
68. rt button loads a selected islr file to the edit grid Any number of islr files may be stored The fourteen default regions of interest set by Wilhelm Imaging Research cannot be edited or modified by the import procedure WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Main Window 43 Project Crops The lt Project Crops gt tab contains information about project crop sets See Fig 24 Crops are a subclass of the regions of interest and represent a geometrically defined area of interest within the image By default the i Star application has a single crop region named Custom Crop and thirteen other i Star Project Files View Windows Arrange Extras General Project Info Project Components Project Variables Project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence custom Crop X Import Mark all Mark selected Remove Apply changes Export Un mark all Un mark selected Fig 24 The Project Crops grid contains a visual model of the reference target of a project The group of buttons including Mark all Un mark all Mark se lected and Un mark selected change the selection of crop grid patches marked with X forming the crop These controls are also found in the Project Crops grid context menu Double click on a patch from the crop grid to select and unselect the patch Eit
69. s may be regarded as a two dimensional array of graphic elements also referred to as samples or patches Images must be digitized for use in the program i e converted to a numeric form Prints and views can be measured by spectrophotometers readily available on the market The minimum graphic size readable by an instruments defines the frequency of the test image sampling The frequency is very low in com parison to the file form image sampling frequencies Nonetheless the i Star application can successfully evaluate the reproduction accuracy even at low spatial frequency When using the i Star application several test files containing numeric renditions of the same image can be grouped into an i Star project After the reference image is defined the i Star application calculates and compares the WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 Introduction 3 I components to that image The i Star application provides a wide variety of results Some results may be used as a generic one number accuracy score describing how much an image pair differs Other results describe and specify the spacial loca tion of exact differences between the images Simultaneously i Star allows project analysis flexibility For example results for a chosen mathematical spatially defined or an entire test target data set can be calculated Visit www wilhelm research com for advanced information about program applications test
70. se information and a link to the Wilhelm Imaging Research Inc website v WIR iStar licensed to Beta Tester Star Project Eiles Windows Arrange Extras Free Public Beta Full Version WIR i Star Professional Edition Ver 2 0 2007 12 15 Powerful CLELAB Based Full tonal Scale Image Appearance Comparison With Simplified One Number or 1wo Number Results Reporting or With Comprehensive Analysis of Image Differences With Specific Colors Human Skintone Colors for Example or Selected Regions of Interest in Photographic Images BH s 4 Copyright 2007 Wilhelm Imaging Research Inc www wilhelm research com No Active Project Fig 30 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface Charts Window WIR i Star Professional Edition Version 7 2 58 The lt Charts gt window allows access to six chart formats See Fig 31 The window contains two tabs lt Settings gt lt Chart gt The lt Settings gt tab contains a set of modifiable parameters and controls similar to those on the Charts tab on the Preferences Page For detailed instructions for these controls refer to the Chapter on Project Chart Settings in this manual The lt Settings gt tab contains the Save as standard and Re store standard buttons Save as standard copies the parameter settings of the current tab into the Project Chart Settings tab on the Preferences Page
71. t specification us ing the test duration ratio The test duration field on the Interpolation page allows point specifica tion using the report units The Comments field on the Interpolation page allows the inclusion of extra notes The Comments field on the Interpolation Worst 10 page allows the inclusion of extra notes The lt Charts gt button group on the Standard Charts page allows access to all charts for preview in the same frame The Load All button on the Extra Images page which loads images from folders into a report The Add button on the Extra Images page allows the addition of a single image into a report The lt Images gt table on the Extra Images page allows preview of included images on the same page WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface 72 S preadsheet The Spreadsheet window is located under Main Menu Extras Spread Window sheet See Fig 37 An unlimited number of spreadsheet windows may be opened In this case the windows will be named Spreadsheet 1 Spreadsheet 2 etc 9 Spreadsheet 1 B c New File Insert Column s Standard Column Width Memorize Geometry Shift Ctrl M Open Data File Insert Row s Standard Row Height Show Main Window Shift Ctrl Save Data File Remove Column s AutoFit Show Next Window Ctrl ORIGINATOR Remove Row s DESCRIPTOR Output Characterisation CREATE
72. tab includes the following sub tabs lt I ctr gt lt I br gt lt I tone gt lt I c gt lt I total gt lt AE Methods gt Test 84 isf WIR i Star Licensed to Beta Tester iStar Project Files View Windows Arrange Extras General Project Info Project Components Project Variables project Regions of Interest Project Crops Project Color Map Project Chart Settings Permanence I contrast variables Detta L threshold 135 Gamma minimum quality level 96 200 Gamma minimum quality level fo False encoding truncation level 0 Minimum quality level 20 P ctr br P tone rc I total AE Methods Default 1 35 Default 200 Default 50 Default 0 Default 20 Nearest neighbors X X X x Bax X X X Default 6 Fig 17 The lt I ctr gt sub tab contains variables related to the calculations of I ctr values See Fig 17 Delta L threshold WIR i Star Professional Edition Version 7 2 The calculation of I tone I tone I ctr and I ctr components require a thresh old treatment for nearest neighbor picture elements having very small initial or final Delta L values Without a threshold eval uation method the measurement of small Delta L changes would result in large deviations As a result the gamma cal User Guide Rev 2010 01 01 User Interface Main Window Project Variables Gamma minimum quality level
73. that the sequence of patches is the same Yes No Assume that sequence of patches is always left to right or top to bottom WIR i Star Professional Edition Version 7 2 23 enabled this option restricts data import not within the requirement parameters This option protects incorrect data import but may not be suitable for all projects Allows use of the DIA engine Based on knowledge of specific data formats for the i Star application the DIA engine will read and recognize data file content If all parameters required for the data import file have been located the DIA will complete the action automatically This option sim plifies the workflow by allowing the DIA engine to recognize and sort information Allows the DIA engine to assume that the import file contains a target with geometry in compliance with the reference target Allows the DIA engine to assume the import file contains a target with a patch reading sequence in compliance with the reference target Specifies the reading sequence used by the DIA on the import data The left to right sequence is common for older Gretag Macbeth Spectrochart software The top to bottom sequence is typical for the new er GretagMacbeth Measure Tool software Improper assumption of the patch reading sequence will result in wrong spatial loca tion of the color patches Once imported check the image reconstruction on the Target Model window User Guide R
74. tion further from a standard Gaussian distribution on its Component Histograms chart will be down graded because it is more likely to contain artifacts WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 Working with i Star 9 Chart 1 Settings Chart Central Frame for Chart 1 882 x 429 m Region of interest i jh nd Y axis All Data z Iv Show in percents f Statistical selection E T nivel v Use complete region Fig 38 Chart 1 Settings Chart Central Frame for Chart 1 882 x 429 Spectral Distribution for Patch 4 2 E r Fig 39 WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 Working with i Star 78 The Spectral Distribution chart shows light response across the spectrum for a selected patch between the reference image and a tested image See Fig 39 This information is helpful in projects involving images with different light sources The rainbow colored line reflects the spectral power distribu tion of the light source of a reference file Even though chart trend lines can represent more than one measurement the visual patch representations be neath the graph delineate both the reference file and the latest included file When spectral data files were not imported for the project the lt Spectral Dis tribution gt chart is unavailable WIR i Star Professional Edition Version 7 2
75. ud Y 3 863 20 964 23212 5 765 59 062 0 000 0 000 0 000 276 534 0 000 1 000 1 000 59 448 0 000 1 000 0 000 0 000 User Guide Rev 2010 01 01 User Interface PDF Report Preview Window PDF Report Priview WIR I Star Report 67 View the lt PDF Report Preview window by clicking Main Menu View PDF Report Prewiew Window See Fig 36 Only one PDF Report Pre view Window may be open at one time Summary Target Test info Filename WIR Test 84 isf report 2007 12 14 pdf Browse Variables at user defined folder C Documents and Settings HP_Administrator Desktop StariSNOO002_ist Regions Criteria Set at project folder C Documents and Settings HP Administrator DesktopliStarSN00002 isf Results at collector folder C Documents and Settingswuser02My Documents Reports Date 2007 12 14 l Star version i Star v 2 2 Release 000000015b Job Number Sample 1 Project Number Sample Number Job 1 Test Started 2007 10 16 11 42 Number of files measurements 6 Last Measurement 2007 11 27 14 49 Total Exposure Time Hrs 1011 115 Reference Target had been printed with Worst 1096 Interpolation Worst 10 Standard Charts Extra Images References Memorize Report presets s S S S S S S S S S S S Report Presets Wilhelm Imag
76. y page lt Date gt field on Summary page lt Supplimental Information gt field on Summary page lt Include Limitations gt button on Summary page lt Memorize this Information gt button on Summary page lt Reference Target notes gt field on Target Info page lt Memorize this Information gt button on Target Info page lt X axis units gt radio group on Results page lt Comments gt field on Results page lt Comments gt field on Results Worst 10 page test gt field on Interpolation page lt test duration gt field on Interpolation page lt Comments gt field on Interpolation page lt Comments gt field on Interpolation Worst 10 page lt Charts gt button group on Standard Charts page WIR i Star Professional Edition Version 7 2 User Guide Rev 2010 01 01 User Interface PDF Report Preview Window 70 lt Load All gt button on Extra Images page lt Add gt button on Extra Images page lt Images gt table on Extra Images page The lt File Name gt field on the Summary page allows creation of a name for the PDF report The lt Browse gt button on the Summary page allows the PDF report file name and defined folder to be set The lt at user defined folder gt check box on the Summary page defines whether the PDF report is created in a defined folder The lt at project folder gt check box on the Summary page defines whether the PDF report is created in the project folder The lt at collector folder gt c

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