X-Rite OBC-Module
Contents
1. X RITE WORLD HEADQUARTERS Grand Rapids Michigan USA 800 248 9748 e 1 616 803 2100 2007 X Rite Incorporated All rights reserved 162. Generate output device ICC profiles 2 Click on the OBC icon and then follow Step 1 by inserting the newly printed test chart into the Step 1 Measure a test chart Start by printing and measuring any of the i1iSis OBC test charts that have been provided with this software Test chart measurement is complete Click the arrow to proceed Pagel Mexrite SIS Optical Brightener Compensation OBC Module User Guide 3 Click the right arrow key when i1iSis has completed reading the test chart nical Briahtaner Compensation 7 0 Step 2 Export a gray evaluation chart Save and Print Gray Evaluation Chart When printing the chart turn off all color management in your print driver or RIP Make sure to use the exact same print settings that were chosen when the OBC profiling chart was printed Gloss Level High Gloss 4 Select the Gloss Level of the media you are printing on and press the save button 5 Select the destination and name that you want to use to save your Gray Evaluation Chart 6 Once the Gray Evaluation Chart has been saved locate the file on your computer and open the file in Adobe Photoshop making sure to select Leave as is don t color manage x4 xrite i1iSis Optical Brightener Compensation OBC Module User Guide Print Document Profile Untagged RGB Q Proof Profile N A Options Color Handing a Did you disable color management in the printer dial
3. generation and print of the Gray Evaluation Chart does not easily translate into a press workflow Users who wish to use the OBC Module to profile their press should check if the paper used for production on the press could also be used with an inkjet or xerographic printer The user would then print the test chart both on the press and on the inkjet or xerographic printer Step one would be to print and measure both the CMKY RGB test chart and the Gray Evaluation Chart from the inkjet or xerographic printer and assess the results under appropriate viewing conditions Step two would be to repeat this process from charts printed on the press In a final step the user would match the results of step 1 against those of step 2 but use the results from the Gray Evaluation Chart printed on the inkjet or xerographic printer to enter the information on the amount of UV preset under the viewing condition into the OBC Module ProfileMaker Certification of Proofs based on OBC Profiles To control the quality and validity of a hardcopy proof according to ISO 12647 7 hardcopy proofs must contain a control strip e g ugra Fogra Media Wedge or IDEAlliance ISO 12647 7 2007 Color Control Strip ISO 12647 7 Graphic Technology Process control for the production of half tone color separa tions proof and production prints Part 7 Proofing processes working directly from digital data Mexrite SIS Optical Brightener Compensation OBC Module User Guide
4. 4 x rite right on color 11 1Sis Optical Brightener Compensation OBC Module User Guide Mexrite SIS Optical Brightener Compensation OBC Module User Guide Contents 1 Introduction 3 User Guide Overview 3 X Rite Overview 3 OBC Module Overview 4 OBC Workflow Technical Notes 4 2 System Requirements 6 Windows 6 Macintosh 6 Additional Requirements 6 3 The Optical Brightener Compensation Module 6 Software Interface 6 Where to Find Profile Target Files l Optical Brightener Compensation Standards 7 4 Printing Test Charts 7 Printing an RGB Test Chart from Adobe Photoshop 7 Printing a CMYK Test Chart from RIP Software 9 5 Measuring Targets and Generating OBC Data 9 6 Building ICC Profiles with OBC Data 13 Using Optical Brightener Compensated Data in X Rite ProfileMaker Software 13 Using OBC Data in MonacoPROFILER 14 7 Additional Information 15 Using Optical Brightener Compensation OBC for Profiling Printing Conditions on a Press 15 ProfileMaker Certification of Proofs based on OBC Profiles 15 Mexrite SIS Optical Brightener Compensation OBC Module User Guide 1 Introduction User Guide Overview This document provides overview information of functions and features for the X Rite Optical Brightener Compensation Module hereafter referred to as OBC We appreciate your taking the time to read and understand the information presented X Rite Overview X Rite is the global leader in color science and technology The com
5. Options MonacoPROFILER Table Options Perceptual Options Ink Control Settings Default m Black Generation M Use automatic settings Type amp UCR GCR The GCR slider controls the extent of the arey component replacement with black Level Light Each level of black generation is represented as a response curve on 4 graph that can be edited Vv Intelligent Black s adjusts black generation settings to n E as oY cu C maximize the total gamut of your device gt IU J Maximum Ink ee Maximum black ink available for printing fioo a aximum total ink available for printing 400 H gt e fe Mexrite SIS Optical Brightener Compensation OBC Module User Guide 3 Click Create Profile and give your profile a meaningful name and save it in your desired location MonacoPROFILER MonacoProfilerSession psn File Options Help Create Profile MonacoPROFILER Create your profile MonacoPROFILER has successfully collected all of the necessary information for creating a profile for your printer Click Create Profile to name and build your profile 4 Your profile will be created and is ready to use as you would any other printer profile 7 Additional Information Using Optical Brightener Compensation OBC for Profiling Printing Conditions on a Press The OBC Module is mainly targeted for inkjet and xerographic printer worktlows as the
6. coPROFILER l 7 Test chart measurement with the Optical Brightener Compensation Generate output device ICC profiles Switch to ProfileMaker Generate output device ICC profiles The right and left arrows move the user forward and backward through the OBC measurement and correction process The Home button returns the user to this initial window x4 xrite i1iSis Optical Brightener Compensation OBC Module User Guide Where to Find Profile Target Files Special profiling targets are provided in the OBC Module s OBC 1 0 OBC Profiling Targets folder In the CMYK Profiling Charts folder are A3 A4 Letter and Tabloid size targets The A4 and Letter sizes are laid out as multiple pages You will need to print all of the pages for these sizes In the RGB Profiling Charts folder are A4 and letter size targets During the profiling process a unique Gray Evaluation Chart will be created The Gray Evaluation Chart is intended to be use only once during the OBC correction process and then discarded Optical Brightener Compensation Standards The OBC Module comes with two sets of OBC Gray Standards each containing four different gray levels Depending on the surface properties of the substrate the glossy or the matt set of Gray Stan dards should be used The user should first print the Gray Evaluation Chart on the same printer using the same substrate and same printer driver settings as were used for the
7. etween conventional NoFilter Green or UVcut Filter Red workflow and the new Optical Brightener Compensation blue Mexrite SIS Optical Brightener Compensation OBC Module User Guide 2 System Requirements Windows Pentium PC or better Windows XP or greater 128MB application RAM 100MB free disk space Macintosh Power Macintosh or better Mac OS X 10 4 or greater 256MB System RAM 100MB free disk space Additional Requirements Licensed dongle for ProfileMaker or MonacoPROFILER software ProtileMaker 5 or MonacoPROFILER must be installed on the system prior to the installation of the OBC module i1iSis or 11iSis XL automatic spectral chart reader 3 The Optical Brightener Compensation Module Software Interface The configuration of the Optical Brightener Compensation Module will automatically set itself to match the look and function of your chosen X Rite profiling software MonacoPROFILER or Profile Maker 5 The features and functionality are the same for both When launched the wizard driven process will first provide the user the option to begin by measur ing the OBC targets or to switch to your X Rite profiling software X Rite recommends that you first run through the OBC wizard before launching the profiliing application in order to be able to gener ate your profile using the corrected OBC data nipalBrahtener Compensation 2 0 gt MonacoPROFILER i1iSis Optical Brightener Compensation Switch to Mona
8. f the match is of a lesser importance In this situation the evaluation of the darker gray patches may not be necessary while they might improve the quality of the match an assessment remains difficult for low amounts of OBAs in the substrates or ink films with a high UV absorption If the OBC Module detects no OBAs in a substrate you will be asked to skip the evaluation process as there won t be any difference between a NoFilter and a UVcut filter measurement and the assess ment of the UV amount of the viewing condition becomes unnecessary After the visual evaluation of the UV effect of the viewing condition a compensated measurement data Tile is generated and saved to be used with your profiling application ProfileMaker 5 or MonacoPROFILER 6 ote h i ea E nT s J ae nA i AL ae oe sa Meat oe e bed t7 ke iar PESEE Pas m 9 ai ga tte e 1 zal te i 44 ms ge yx DER ekr ai ars T ear tar gt E ae g WEA 3 wta t r m Gii ees al ie Pa rete tn ae ak Da a ETE wren g th ena yess aes e eas ig Sg Rane eg ei dE ig ra Meh etme OL 3 ahs La rey Rp het Tht se S be ge i st b oR EARM I E NE E S we BS Use v4 27 a ov Sei a T gt p E T bee Te ee ee ee a rab a ERA SRE MEE at eee Ty pes Sif E P E 2 7 o e ain 3 ere ce A pe EE ae r 2 Sed RT s le be RT i me w s e 1A Pi que a fin j g v oe gt E Sepa PNE pean RAM EEE RI Tee gt A A at Fig 1 Differences b
9. he vis ible spectrum In fact OBAs are actually more bluing agents than whitening agents As a result the human eye perceives the effect as increased whiteness and brightness of the paper whereas spectral measurement devices report a shift towards blue Color management applications tend to fix the problem by compensating with yellow which results in an unwanted yellow cast effect in images on the proof or print Over the years many attempts have been made to fix this problem by using UVcut filters in measurement instruments and viewing booths or by avoiding or limiting OBAs in the proofing substrates and in papers used for standard ized printing conditions e g ISO 12647 2 The ability to avoid OBAs is becoming however increas ingly difficult due to the ever increasing amount of OBAs in typical papers used for print production and since UVcut environments do not necessarily match the consumer s usual envornment for viewing Unlike previous attempts to correct for the OBAs in a substrate X Rite s OBC solution corrects the spectral reflection measurement data of the complete test chart Since every single patch of the test chart gets corrected the OBC correction thus applies to the complete gamut of the printer Individual UV absorption of the ink layer of the different patches is also considered as part of the correction Given that the OBC module modifies the measurement data it thus allows the user to take full advantage of his profili
10. inter driver settings as used for the CMYK or RGB test chart printed earlier in the process Once the ink has dried the individual patches in the Gray Evaluation Chart need to be visually compared against the OBC Gray Standards in typical viewing condition used for hardcopy proof evaluation e g a viewing booth or on the control panel of a printing press The OBC Module comes with two sets of OBC Gray Standards glossy and matte each containing four different gray levels Depending on the surface properties of the substrate either the glossy or the matte set of Gray Standards is to be used The best match between the Gray Standard and the Gray Evaluation Chart will be achieved in the fields A C no or little UV in the viewing condition D M medium UV level in the viewing condition and N S high UV level in the viewing condition contingent on the amount of UV light the is present under the viewing conditions Please note that some viewing booths have a UVcut filter applied to the illuminants so results may always end up in fields A C regardless the amount of optical brighten ing agents in your substrate The visually perceptible difference between the various fields on the Gray Evaluation Chart is depen dent on the amount of OBAs in the substrate Where low amounts of OBAs exist the visual difference is marginal making it perhaps difficult to find the right patch In such a case the strength of the correction is also marginal so the accuracy o
11. log Printer Profile Working RGB Adobe RGB 1998 Rendering Intent Relative Colorimetric Black Point Compensation Proof Setup SWOP Coated Press C Scale to Fit Media C Simulate Paper Color Scale 100 v Simulate Black Ink ba gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt gt HOHE EEE EEO EOS Height 10 629 Width 8 267 Print Resolution 101 PPI Match Print Colors C Show Bounding Box C Print Selected Area Cin nr D 5 Do not scale the image in Photoshop It must be printed in its original size or the i1iSis will not be able to properly read the target 6 Select the proper paper size in the Page Setup dialog box Settings Page Attributes HH Format for My Color Printer H Paper Size US Letter H 8 50 by 11 00 inches Orientation Ta scale 1008 7 Turn off the color management in Photoshop CS2 or CS3 by selecting Same as Source in the Profile pull down menu In CS2 and CS3 select No Color Management under the Color Handling pull down 8 In the printer s driver settings make sure that all color management is turned off This includes all automatic color settings color matching options and manual color controls Also make sure to select your media type if yours is not listed select the one that
12. most closely represents your substrate 9 Make sure that you document the print settings in the printer s driver You will need to use them when you print with the new ICC profile Mexerite SIS Optical Brightener Compensation OBC Module User Guide Printing a CMYK Test Chart from RIP Software When profiling a printer through a RIP you will need to select a CMYK target You will need to per form any media calibration routines provided by the RIP software 1 Calibrate the media for the print settings that you will use when printing in normal production These settings include screening resolution and any other settings that affect the way that ink or toner is placed on the substrate 2 Print the target with all color management turned off Make sure that the calibration in enabled 5 Measuring Targets and Generating OBC Data The user options in the OBC Module are the same whether you use ProfileMaker or MonacoPROFILER profiling software The software interface shown here is for ProfileVaker MonacoPROFILER uses the exact same process the only difference is the style of the user interface and the type of measurement files that are generated 1 Start by launching the OBC Module Make sure that your ProfileMaker 5 or Mo nacoPROFILER dongle is connected and recognized by your operating system i1iSis Optical Brightener Compensation Test chart measurement with the Optical Brightener Compensation Switch to ProfileMaker
13. ndices will produce superior results CCO a a 11 Click Save to export the compensated measurement values Give the file a meaning ful name and save it to your desired location A session text file is then created that can be used directly in your profiling application If you are using MonacoPROFILER you may select the option to open session immediately to get started on the profiling process MnicalBrahtener Compensation 20 Step 4 Export compensated measurement values Click Save to export the compensated data for use in ProfileMaker 12 Use the Home button to return to the main window 13 Click on the button for your profile making software application Switch to MonacoPROFILER Switch to ProfileMaker Generate output device ICC profiles Generate output device ICC profiles or Mexrite SIS Optical Brightener Compensation OBC Module User Guide 6 Building ICC Profiles with OBC Data Using Optical Brightener Compensated Data in X Rite ProfileMaker Software 1 Select the Printer tab then drag and drop your ProfileMarker Session text file into the reference window This will automatically place the proper data into the Reference and Measurement Data fields Reset the reference data set to ECI2002 in the reference window Set up the profile options as you normally would for the type of printer or press that you are using If you are working with a CMYK printer you can also set your separation se
14. ng application s features for black generation and maximum ink coverage through seamless integration into the existing profiling software MonacoPROFILER or ProtileMaker 5 The user can achieve these unparalled results only by replacing the measurement module Color Port or MeasureTool of the profiling software with the OBC module to be used in conjunction with the i1iSis automated chart reader All ICC rendering intents benefit from the i1iSis OBC module especially soft and hardcopy proofing where the media white point is simulated Profiles corrected with OBC result in much better visual agreement with the print than with ICC profiles based on NoFilter or UVcut Filter measurements As there are still variations regarding the ultra violet light in different viewing conditions the i1iSis OBC module will not necessarily fix all existing problems as it can only compensate for one specific view ing condition at a time But even if other viewing conditions differ slightly from the profiled viewing condition the results of an OBC ICC profile will be much better than ICC profiles based on NoFilter or UVcut Filter measurements alone OBC Workflow Technical Notes The i1iSis Optical Brightener Compensation correction is based on a two step process profiling of test chart measurements and a visual assessment of gray patches to adjust the measurement data to compensate for the amount of UV light present in the viewing condition In the first step a te
15. og piner ronie tending et arr 18 Black Point Compensation Proof Setup Working CMYK A B c o e P G H J K t C Simulate Paper Color V Simulate Black Ink m fo tz o A o a oO o H a ma RO ve seo 6 we a ec mE Ba z z x le sels 2 we o o z x Ej Print the Gray Evaluation Chart with no color management Use the exact same settings that were used to print the previous test chart Open the Optical Brightener Compensation Standards envelope and carefully pull out the set of sheets that matches the gloss selection you made earlier high gloss or matte ma xrite a ae Use the same viewing conditions that you intend to use to view you prints eg a light booth One at a time use the OBC Gray Standards to select the patch in each column of the CMYK or RGB test chart that best matches the neutral gray standard Mexerite SIS Optical Brightener Compensation OBC Module User Guide 10 Once you have made the best selection record the values in the OBC Module After this is completed click the right arrow to continue n Profile aker OB OB OGE E ER Anaal BriohtenerComnensation 7 0 Step 3 Select gray patches Select the index value of the gray patches on the Gray Evaluation chart that provide the best visual match to the OBC Gray Standards Selection of the first index lightest gray is mandatory but accurate selections for all four i
16. pany which now includes design industry color leader Pantone Inc develops manufactures markets and supports innovative color solutions through measurement systems software color standards and services X Rite s expertise in inspiring selecting measuring formulating communicating and matching color helps users get color right the first time and every time which translates to better quality and reduced costs X Rite serves a range of industries including printing packaging photography graphic design video automotive paints plastics textiles dental and medical For further information please visit www xrite com ve x rite i1iSis Optical Brightener Compensation OBC Module User Guide OBC Module Overview The X Rite Optical Brightener Compensation OBC module is the industry s first complete optical brightener correction solution Designed for use in conjunction with X Rite s i1iSis family of automatic spectral chart readers and ProfileMaker or MonacoPROFILER profiling software X Rite s OBC module allows users in color critical proofing and printing environments to effectively and precisely compen sate for color shifts in custom ICC output profiles caused by Optical Brightening Agents OBAs in papers and other printing substrates OBAs are widely used by paper manufacturers to increase the apparent whiteness of substrates OBAs absorb energy in the ultra violet spectrum and emit light fluoresce in the blue area of t
17. printing of the profiling test charts earlier either CMYK or RGB in the process Individual patches of the Gray Evaluation Chart are to be compared visually against the OBC Gray Standards in the typical viewing condition used for hardcopy proof evaluation e g in a viewing booth or at the control panel of a printing press 4 Printing Test Charts Printing an RGB Test Chart from Adobe Photoshop When profiling a printer through a print driver you will need to select an RGB target We recommend printing the target files through Adobe Photoshop 1 Open Adobe Photoshop 2 Open desired profiling target for RGB printer 3 Select Leave as is don t color manage The document OBC RGB Letter tif does not have an embedded RGB profile fy What would you like to do Q Leave as is don t color manage Assign working RGB Adobe RGB 1998 O Assign profile sRGB 1EC61966 2 1 H and then convert document to working RGB Cane D Mexrite SIS Optical Brightener Compensation OBC Module User Guide 4 To print the chart in Photoshop CS3 select File gt Print to print the chart in Photoshop CS2 select File gt Print with Preview Print Printer Document Profile Untagged RGB My Color Printer H O Proof Profile N A Copies 1 Options Page Setup coarHanding Ne Coor maraon Position 7 Did you disable color management 1 M Center Image 2 inthe printer dia
18. st chart is produced on your printer Once the ink has dried it is measured with the i1iSis in dual measurement mode During the first measurement cycle the test chart is measured in the UVcut mode The chart reader will automatically illuminate the test chart with a white light source containing no energy in the ultra violet part of the spectrum and the optical brightening agents in the substrate won t be stimulated In a second measurement cycle the i1iSis measures the test chart in UVonly mode The test chart is illuminated by a UV light source and only the effect of the optical brightening agents on the color of the different patches of the test chart is measured 4 x rite i1iSis Optical Brightener Compensation OBC Module User Guide The information from both measurements is used by the OBC Module to correct for the optical brightening agents in the substrate As the level of correction must be adjusted to the intensity of the effect of the optical brightening agents in a real world viewing situation the amount of UV light in the viewing condition must be assessed as an additional step Following the measurement process with the i1iSis the OBC Module then creates an individual gray evaluation test chart suitable for your printing condition and your substrate using different corrective measures for the various amounts of UV light present The Gray Evaluation Chart is then printed on the same printer using both the same substrate and same pr
19. ttings to match your printer or press conditions MSO o ASO w po MONITOR CAMERA SCANNER MTAA MULTICOLOR DEVICE i Reference Data Profile Size ProfileMakerSession txt Perceptual Rendering Intent Paper colored Gray H Gamut Mapping LOGO Colorful AH Separation J Viewing Light Source 050 Correct for Optical Brightener Calculate Profile x xrite 14 i1iSis Optical Brightener Compensation OBC Module User Guide 4 Select Start to create your profile Give your profile a meaningful name and save it in your desired location 5 Your profile will be created and is then ready to use as you would any other printer profile Using OBC Data in MonacoPROFILER When you select the OBC Module option to open the session immediately MonacoPROFILER will open into the Read Patches window and will show your measurement data 1 Click on the right arrow to move to the profile options step MonacoPROFILER MonacoProfilerSession psn File Options Help Read Patches Import Average Export Reset Connect lt lt 1of1 gt gt V View Split Patches Zoom In 2 Set up the profile options as you normally would for the type of printer or press that you are using If you are working with a CMYK printer you can also set up your separation settings to match your printer or press conditions MonacoPROFILER MonacoProfilerSession psn File Options Help Profile
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