Preview the LensDoc Manual PDF
Contents
1. My Microsoft My x Windows Andromeda LensDoc Filter USER S MANUAL LENSDOC FILTER Copyright 2006 Andromeda Software Inc Licensing and Copyright Agreement Copyright 2006 by Andromeda Software Inc All rights reserved Except as permitted under copyright law no part of the program or this user manual may be reproduced or distributed in any form or by any means without the prior written permission of Andromeda Software Inc The program and this manual are licensed only for individual use on a single computer Limitations on Warranty and Liability Neither Andromeda Software Inc nor its distributors and dealers make any war ranties or representations either expressed or implied as to the software and documentation including without limitation the condition of software and implied warranties of its merchantability or fitness for a particular purpose Andromeda Software Inc shall not be liable for any lost profits or for any direct indirect incidental consequential or other damages suffered by licensee or others resulting from the use of the program or arising out of any breach or warranty Trademarks Adobe Photoshop and InDesign compatible plug ins include Series 1 Photography Filters Series 2 Three D Series 2 Three D Luxe Series 3 Screens Series 4 Techtures Shadow Velociraptor VariFocus Measurement Cutline LensDoc Perspective EtchTone Scatter2. NS Novice or Expert Mode select FIX PARALLELS O Fix Rotation under Step 1 right column 2 Select the image elements that you wish to make parallel Using the same procedure as for lens correction drag and align a set of yellow guides onto one line and then drag and align the green STEP 1 Fix Distortion Fix Rectangles Fix Parallels Fix Rotation STEP 2 wee 7 VE NOVICE MODE Point to any itern to get help on how to use it A f O EXPERT MODE Page 24 guides onto the other selected line 3 Click on the MAKE Button under STEP sTEp 2 to apply the correction Revert will return the 0 1083 preview to the pre corrected state In Expert MAKE _revert Mode the numeric indicator above the MAKE Button indicates the deviation between the two lines in degrees 4 If you are satisfied with the settings the correction can be applied by click ing on the check mark at the lower right hand corner of the filter Alternately you can perform a rotation correction before applying the filter You can also return to the lens correction FIX ROTATION to further fine tune the results The color of the Correction Radio Buttons under step 1 indicates which cor rections have been applied Black means applied red means not applied 5 6 Rotation Correction 1 To adjust rotation in either Novice or Expert Mode select FIX ROTATION under Step 1 right column 2 Select the image element that you wish
3. if possible 2 Open the image canon s10 6 jpg under Expert Mode using the generic setting Align both sets of markers as suggested by the targets on the image After carefully aligning press the CORRECT Button The sliders should read around 27 30 and 80 100 Save this setting by click ing on the Save Folder Icon Name the setting Canon S10 6 3 Repeat the same procedure with canon s10 8 jpg canon s10 10 jpg and canon s10 13 jpg Name each of the settings with the correct focal length after the sign Close Photoshop 4 Grouping these saved settings together will require manual editing of text files Open the folder lensdoc filter Presets under Photoshop gt Plug Ins gt Andromeda gt LensDoc Filter Presets Open the file Canon S10 6 txt The first lines will look like this depending on the edi tor this may look slightly different NAME generic barreling1 ID canon 10 6 FOCAL LENGTH 26 Page 30 FOCUS 75 000 SYNTHETIC 1 The bold items are the only ones that should be modified All presets for a particular zoom lens must have the same ID to be grouped together by the filter In this case canon S10 is the obvious choice Focal length should be changed to the actual lens focal length for this file 6 The number from focus should be removed After correction these initial items will look like this NAME generic barreling1 ID canon S10 FOCAL LENGTH 6 FOCUS SYNTHETIC 1 This al
4. is clicked on to rotate the angle of the item to a horizontal position The REVERT Button 12 Clicking on the REVERT button will undo the effects of the Align Horizontal and Align Vertical buttons 3 2 4 The Magnification Window 13 This window magnifies the area in the Preview Window where a target and or the magnifier were last placed Use the magnification slider located below this window to accurately place the correction guides 3 2 5 The Mode Cancel and Check Buttons 14 o The Mode Buttons Choice of either Novice or Expert Modes is made by clicking on the corresponding radio button The Cancel Button This button is clicked on to cancel out of the filter and return to the host program The Check Button This button is clicked on to render the corrections that have been applied to the image and are visible in the Preview Window Page 12 4 0 THE USER INTERFACE EXPERT MODE ANNOTATED 4 1 The EXPERT User Interface at a Glance When the EXPERT button is clicked additions to the NOVICE User Interface are added as shown below Cen x F STEP 1 Fix Distortion Fix Rectangles Generic Lens O Sue tic Lens Fix Parallels Fix Rotation Generic barreling 6 v STEP 2 oo gesel d gt 0 0275 CORRECT REVERT LESS MORE 2 gt 3 gt T CENTER 0 0 EDGE 4 gt SCALE sd Se lt 6 Toggle auto size mode 2 auto size mode the image is ig elf eee are
5. 7 0 APPENDICES is assist ii is i hd eee eee 30 7 1 Creating Custom Zoom Lens Groups 31 Andromeda LensDoc Filter INTRODUCTION 1 0 LensDoc is a Photoshop compatible Plug in that corrects lens and perspec tive distortion through the use of a Photoshop filter with a unique user friendly interface It has modes suitable for both novice and proficient users By performing all corrections simultaneously image quality is preserved LensDoc provides the user with the ability to correct lens distortions and make rotational adjustments including Lens Barreling This lens distortion causes straight lines to bow outward like this Lens Pincushioning This lens distortion causes straight lines to curve in ward like this Viewpoint Adjustment Par allel lines appear to cre ate a parallelogram shape rather than being perfectly square Perspective Distortion Par allel lines appear to con verge or diverge instead of remaining truly parallel Axis Rotation Important image elements appear to deviate from the vertical or horizontal axis To see the difference refer to images 1 5 Image 1 shows the original uncor rected image with barreling distortion Page 2 re aligning the sides of the garden planter to a vertical angle LensDoc can apply any or all of the avail able correction types on an image If all cor rections are used it is best to apply them in the order suggested FIX DIS
6. Page 28 ing colored guides Each Guide Button activates three targets for Lens Correction For Lens Correction in Expert Mode a numeric indicator is present below each Line Straightening Guide Button This indicates how close the current correction is to a Straight line all zeros being perfect NOTE The Guides correction function corresponds to the type of cor rection 7a Distortion The targets determine a bowed line to be straightened 7b Rectangle The targets determine a parallogram to be made square 7c Parallel The targets determine end points of two non parallel lines 7d Rotation The guide determines the end points of an object that is non vertical or non horizontal 8 Magnification Window This window gives a highly magnified view of the preview image The location of the view is indicated by a small red square in the preview Clicking on any point in the preview moves the view to that point Clicking on a target moves the magnifier over the image under the target Holding down the Control Button while dragging a target will display the target in the Magnification Window while increasing the sensitivity of target placement The target can also be moved in the Magnification Window The Magnification window can also be zoomed in and out using the magnifica tion slider located directly under the magnification window 9 Revert Button This button returns the image to its pre corrected state A second click ret
7. Step 1 With moving targets click the CORRECT Button to achieve an approximate correction Now slowly move the Less More Slider until the desired correction appears in the Preview Window If necessary the Center Edge can also be adjusted When the image correction becomes Page 6 acceptable click on the Check Mark or select another correction type For further details refer to the complete instructions and related tutorials in this manual 2 2 2 Fix Rectangles 1 Make sure the Novice Mode Radio Button at the bottom right is se lected 2 Under Step 1 choose FIX RECTANGLES from the right column 3 Four targets are present in the Preview Window These should be po sitioned along the four corners of an element in your image that should be square but isn t Position the targets by clicking and dragging 4 Click on the MAKE RECTANGLE button Ifthe results are not quite what you want you can reset this correction by clicking the REVERT button and re positioning the guides 5 If the automatic scaling function has cropped off important parts of the image click on Expert Mode at the bottom Then click on the Auto Scale Button Finally move the Scale Slider to the left until the parts of the image that you wish to retrieve once again appear within the perimeter of the im age area You can also adjust the horizontal scale of the image to correct any horizontal distortion that may have occured You will have to crop the final im
8. to STEP 1 Fix Distortion Fix Rectangles Make perfectly horizontal or vertical Using the O Fix Parallels same procedure illustrated for lens correction drag and align the set of yellow targets onto this element 0 Fix Rotation x STEP 1 Fix Distortion Fix Rectangles Fix Parallels Fix Rotation mev o REVERT ALIGN T NOVICE MODE Point to any item to get help on how to use it 2 Vf O EXPERT MODE Andromeda LensDoc Filter 3 Click on the ALIGN VERTICAL or ALIGN HORIZONTAL Button under STEP 2 to apply the correction REVERT will iiaii 0 0464 return the image preview to its pre corrected aucN of REVERT state In EXPERT MODE the numeric indica Auen T tor above these buttons indicates the deviation from horizontal or vertical in degrees 4 If you are satisfied with the settings the correction can be applied by clicking on the Check Mark at the lower right hand corner of the User In terface Alternately you can return to either of the prior correction types to further fine tune the results You can also return to the lens correction Fix Distortion to further fine tune the results The color of the Correction Radio Buttons under step 1 indicates which corrections have been applied Black means applied red means not applied 6 0 GLOSSARY 6 1 General Aspect Ratio The relationship of the width to the height of an image 35mm images have an aspect ratio of 1 5 86x24 whereas a square i
9. to assist you in beginning the process Use the GENERIC LENS setting under NOVICE Mode with both images LACMA jpg represents extreme barreling Place one set of straightening guides green targets in the center of the designated circular targets 1 2 and 3 and another set yellow targets in targets A B and C If a corner of the image appears to be missing when you open the Filter click on the REVERT button before placing target points Note that the targets were specifically chosen so your selections would be along straight edges Points X Y and Z are provided as an example of centrally pointed targets that are well aligned to begin with and should not be used Bologna instruct jpg shows the target points that were used for correcting the Introduction example This image has mild pincushioning For lens distortion correction place one set of Line Straightening Guides centered on the line within targets A B and C Place the other set on X Y Z For Perspective Correction place one set Page 20 of guides in targets A and C The other set should be placed in targets 1 and 2 For Rotation Correction place the guides in either set A and C or set 1 and 2 5 2 Lens Distortion Correction Expert Mode Generic Lens Correc tion Expert Mode provides more elaborate use of sliders to control generic lens corrections The automatic straightening guide function in Nov ice and Expert Modes is identical Additional func
10. Light Lenses RedEyePro and also the PhotoTiler Pro and CTBar for Adobe InDesign Andromeda Series and Suite Filters are trademarks of Andromeda Software Inc Adobe Photoshop is a trademark of Adobe Systems Inc All other products are trademarks of their respective companies Andromeda LensDoc Filter developed by Dave Dyer Dr Steve Kundell amp Donn Gladstone UI Design Donn Gladstone amp Dave Dyer Technical Completion Dr Steve Kundell Dave Dyer Steve Myers amp Lou Ann Barbeau Quality Assurance Peter Mostowa David Dobson Third Eye Bangalore amp Lou Ann Barbeau Documentation Guy McCool Dr Steve Kundell amp Peter Mostowa Marketing Brian Wynn Sales Support Jane Narramore amp Brian Wynn 2006 Andromeda Software Inc 699 Hampshire Rd Suite 109 Thousand Oaks CA 91361 USA Andromeda LensDoc Filter Table of Contents 1 0 INTRODUCTION EES EE SES SEE EG 2 0 HELP amp QUICKSTART TUTORIAL ees esse ees 2 1 HEID P SEE ES BEER OER eee ee yes AE EE 2 2 Quick Start Tutorial iese ss se ke 2 2 1 Fix Lens Distortion 2 2 2 Fix Rectangles 6 sees dame b Sed date 2 2 3 Fix ParallelS 0 00000 eae 2 2 4 Fix Rotation i 3 0 THE USER INTERFACE NOVICE MODE ANNOTATED 00000ee 3 1 The NOVICE User Interface at a Glance 3 2 The NOVICE User Interface Work Areas 3 2 1 The Preview Window 3 2 2 The Lens Type Select
11. TEP 2 oPo ma CORRECT REVERT NOVICE MODE Point to any itern to get help on how to use it Ly F O EXPERT MODE 7 Andromeda LensDoc Filter 9 Now click the CORRECT button You should see a better result Note that it makes no difference if both sets of guides are on lines that are parallel or perpendicular to each other The results would be the same 10 Choosing target placement is important The goal is to choose lines that you want to straighten At least one set of marker points should be near the edge of the image As noted above placing a second set of guides part way in from the edge in creases the accuracy of the result On the other hand lines that run through the center of the image or point toward the center like spokes on a bicycle are straight to begin with and should never be selected as target lines Their selection will result in incorrect and sometimes bizarre results As an experiment turn off the Green Line Straightening Guides and align the yellow targets far apart on the diagonal line in the test image You will see that slight movements of the central marker followed by clicking the CORRECT button result in wildly different O Generic Lens results Specific Lens STEP 1 Fix Distortion Fix Rectangles Fix Parallels Fix Rotation 11 Now lets try the correction using the Specific Lens set ting Return to Step 1 in the User Interface and choose SPECIFIC LENS Click on the Lens Pu
12. TORTION first FIX PERSPEC TIVE and finally FIX ROTATION Image 5 illustrates the before and after of the viewpoint adjustment FIX RECTANGLES Image 2 illustrates the correction of Barreling lens distortion utilizing the LensDoc Photo shop filter Images 3 and 4 show perspec tive correction of an image Notice that the sides of the garden planter do not appear at a vertical angle Image 4 illustrates perspective correc tion of image 3 by Notice that in image 5 the before image top shows the outline of the handicap sign forming a parralelogram This will occur when the element is photographed from an angle The after image bottom on the other hand Andromeda LensDoc Filter appears square and photographed from the front This is useful for when an object is not access able directly from the front The LensDoc Filter will apply the correc tions in order that you specifiy This allows you to toggle be tween correction types to fine tune the im age Corrections in Lens Doc are typically ac complished using straightening guides which are sets of three targets that are rep resented in the Preview Window and Magnification Window as small moveable yellow and green boxes For correcting lens barreling and pincushioning LensDoc has 2 modes Novice and Expert Novice Mode provides the capability for correction by carefully aligning one or preferably 2 sets of points along
13. age in Photoshop Please refer to section 5 6 Rectangle Correction for more information 6 If the results are acceptable you can either click the Check Mark at the lower right corner of the User Interface to apply the correction or proceed to Fix Rotation 2 2 3 Fix Parallels 1 Make sure the Novice Mode Radio Button at the bottom right is se lected 2 Under Step 1 choose FIX PARALLELS from the right column 3 Two Parallel Line Guides with 2 targets in each set are present in the Preview Window These should be positioned along two elements in your Andromeda LensDoc Filter image that should be parallel You can align either two vertical elements or two horizontal elements Position the targets as described earlier by clicking and dragging 4 Click on the MAKE PARALLEL button If the results are not quite what you want you can reset this correction by clicking the REVERT button and re positioning the guides 5 If the automatic scaling function has cropped off important parts of the image click on Expert Mode at the bottom Then click on the Auto Scale Button Finally move the Scale Slider to the left until the parts of the im age that you wish to retrieve once again appear within the perimeter of the image area You will have to crop the final image in Photoshop Please refer to section 5 4 Parallels Correction item 5 6 If the results are acceptable you can either click the Check Mark at the lower right corner of th
14. c subtypes listed below are only seen in Expert Mode but are used in Novice Mode as well In Expert Mode the name appears within the Lens Pull down Menu below the Step 1 radio buttons 5b Barreling corrects Barreling Distortion 5c Extreme Barreling corrects extreme Barreling Distortion often produced by wide angle adapters for example 5d Pincushioning corrects Pincushion Distortion 6 Specific Lens These are corrections either for specific lenses special effects or additional special generic type corrections These choices are available in both Novice and Expert Modes in the Lens Pull down Menu The primary subtypes are 6a 35 mm Lenses Correction for certain 35mm camera lenses listed by manufacturer 6b Alternate Barreling A special generic lens correction for wide angle lenses that display greater barreling toward the center of the image than the edge 6c Digital Cameras Correction for certain digital camera lenses listed by manufacturer 6d Funhouse Effects A myriad of special effects 6e User Saved Settings Settings that will appear in the primary folder 6f Lens Pull down Menu A pull down menu that lists the current selected lens This is located above the Magnification Window 7 Line Straightening Rectangle Parallel and Rotation Guides Small green and yellow squares used to control the automated corrections in LensDoc These guides are activated by pressing either of the Guide Buttons display
15. ct ratio can be adjusted when the Auto syep O Fix Distortion Scale is disabled Fix Rectangles 0 Fix Parallels O Fix Rotation o Fix Parallels Radio Button When Fix Parallels is selected controls appear that provide for correction of non parallel lines Make Parallel Button 8 After the green and yellow Parallel Line Guide Targets are positioned at opposite ends of each converging or diverging STEP 2 line the Make Parallel Button is depressed to initi rallel correction 8 gt wake REVERT lt 9 tiate pa allel correctio Andromeda LensDoc Filter The REVERT Button 9 previous page STEPS OE Clicking on the REVERT button will undo EE the effects of the Make Parallel Button EE arine o Fix Rotation Radio Button When Fix Rotation Mode is selected rotation adjustment of image elements can be per formed to convert the angle of the element to become horizontal or vertical The following controls appear in the User Interface when the Fix Rotation Radio Button is selected STEP 2 11 gt auon e _revert lt 1 2 10 gt ALIGN T Align Vertical Button 10 After the yellow Rotation Line Guides are positioned at each end of the object to be rotated the Align Verti cal Button is clicked on to rotate the angle of the item to a vertical position Align Horizontal Button 11 After the yellow Rotation Line Guide Targets are positioned at each end of the object to be rotated the Align Vertical Button
16. d then the Scale Slider causes the image to be re scaled Pixels from this distance to the center are not moved and remaining pixels are adjusted relative to this position 4 2 5 Graph Mode User Interface 5 When the graph icon is clicked on the EXPERT mode user interface is partially modified to the graph interface shown below 4 2 5 1 Four Curve Graphs 1 The four Alternate Graphs are dynamically updated to illustrate permutations of what the Primary Graph will look like as the slider s are moved towards extreme settings These curves represent 4 correction curves which are merged to produce the actual correction The vertical axis represents displacement from correct position towards center or edge The horizontal axis represents the position in the STEP 1 L Fo 100 DO Maande FD 100 OG GEMERIC LENS O SPECIFIC LENS gener ic eet wf eet wf POSITION oo Ia K ber POSITION edge STEP 2 of gee correct a LESS z3 POSITION CENTER 3 3 AUTO SCALE Toggle graph mode H on graphe of the curves are displayed instead of the picture preview a Page 14 image from center to edge 4 2 5 2 Corrected Image Preview Window 2 This graph reflects changes to both the Less More slider and the Center Edge slider 4 2 6 Auto Scale Button 6 When the Auto Scale mode is selected the image is re scaled slightly to avoid black pixels appearing at the edges some pixels are lost beyond the edges of the image When the A
17. d on your desktop 2 Open the LensDoc filter under Filters gt Andromeda gt Lensdoc 3 LensDoc should be in Novice Mode The mode is chosen by selecting the Novice radio style Button at the bottom of the filter Andromeda LensDoc Filter 4 Under Step 1 select FIX DISTORTION from the right column and GE NERIC LENS from the left column 5 Under Step 2 click on the Green Straightening Guides Button the but ton with 3 green guides to place green targets in the Preview Window if they are not already there If yellow targets are present on the screen click on the Yellow Straightening Guides Button to remove this group an X will appear over the button to indicate that this group has become disabled It doesn t really matter which set of markers are used first 6 Place all three green targets far apart along the same outermost black line choosing either a horizontal or vertical line Do this by clicking and dragging each of the targets to the desired location and placing them on the black line Fine tune this setting by pressing the Control Key and observing the Magni fication Window on the right Release the Mouse Button before releasing the Ctrl key when you are precisely over the center of the line Now move the Mouse Button to the Magnification Window If you click and move the small target in this window you will see that you can also fine tune within the Magnification Window X STEP 1 Fix Distor
18. dromeda LensDoc Filter
19. e User Interface to apply the correction or proceed to Fix Rotation 2 2 4 Fix Rotation 1 Make sure the Novice Mode Radio Button at the bottom right is se lected 2 Under Step 1 choose FIX ROTATION from the right column 3 The targets in the Yellow Rotation Guide should be positioned along an important image element that should be exactly horizontal or vertical Examples are the horizon line or the side or a building 4 Click on either the ALIGN VERTICAL or the ALIGN HORIZONTAL Button Again if the results are not quite what you want you can reset this axis adjustment by clicking the REVERT button and re positioning the guides 5 If the results look good you can either click the Check Mark at the lower right corner of the User Interface to apply the alignment or revise one of the prior correction types IMPORTANT Sometimes applying one correction type for example FIX PARALLELS will hide the straightening guides when another correction type needs adjustment In this case any of the corrections can be reverted by clicking on the REVERT button re adjusting guides and re applying each correction The color of the correction type radio buttons right column of STEP 1 Page 8 serves as areminder of which corrections have actually been applied Red indicates that the correction has not been made black indicates that it has The REVERT Button will return you to the last corrected state of the current correction type when cl
20. ee Sope aa ek bi 8 NOVICE MODE edges and some pixels are lost beyon d the edges of the picture When off a slid s you escalfa gt ds EPERT ore A vd to dd the de S black pixels and pixels lost ede the 2 4 2 The EXPERT User Interface Work Areas The following work areas are added to the NOVICE User Interface when EXPERT mode is initiated for FIX DISTORTION 4 2 1 The Line Straightening Guide Numeric Values 1 The numeric values below both the Yellow and Green Line Straightening Guide Buttons indicate the straightness of the line between the points for the respective set of guides Zero is perfectly straight This exact numeric value of the correction can be seen for all of the correction modes in LensDoc Andromeda LensDoc Filter 4 2 2 The Less More Slider 2 This slider controls the amount of correction over a wide span of adjustment within the current curve family 4 2 3 The Center Edge Slider 3 This slider controls the shape of the generic correction curve concentrating the correction towards the center of the frame or toward the edge of the frame Usually this is a subtle effect 4 2 4 The Scale Slider 4 This slider appears in the User Interface when the Auto Scale button is clicked off This slider controls the point of zero correction from center at left to edge at right of the frame however this only happens when distortion is the only correction being applied If paral lels or rotation is being applie
21. er toward the edge of the image 5 2 2 Scaling Control AUTO The Auto Scale and Scaling Slider control the final image SCALE size to eliminate unwanted edge pixels In most cases the automatic setting will suffice In some more extreme corrections using the manual setting and adjusting the slider can save important information near the sides or corners of the image SCALE In some of these cases the aspect ratio relation of width to height of the final im ge age will be changed The Scaling Slider S is activated by clicking on the Auto Scale button which will cause an X to appear on the button An enabled Scale Slider will also appear You may need to crop your final image in Photoshop if manual scaling is used 5 2 3 Saving of Settings 7 Control settings can be saved by clicking on the Folder Icon C Button with the incoming arrow Page 22 A Useful names include the lens model and focal length eg super C lens 20 200 28 These saved settings will later be available under the list of Specific Lenses the next time you open Photo shop They can also be imported while Photoshop is open by clicking on the Folder Icon Button with the outgoing arrow 5 3 Lens Distortion Correction Expert Mode Specific Lens Correction This mode is essentially identical to NOVICE MODE Specific Correction with the addition of manual Scaling Control and Saving of Settings as described in the previous section 5 4 Rectangle Cor
22. es are digitial camera 35mm lenses alternate barreling and Funhouse effects 3 2 3 The Fix Type Selection 3 A choice of radio buttons is provided to select either Fix Distortion Fix Rectangles Fix Paralles or Fix Rotation The color of the correction type radio buttons right column of STEP 1 serves as a reminder of which corrections have actually been applied Red indicates that the correction has not been made black indicates that it has o Fix Distortion Radio Button When Fix Distortion Mode is selected straightening of lines that have been curved by barreling or pin cushioning distorrtion can be performed The following controls appear in the User Interface when the Fix Distortion Radio Button is selected The Line Straightening Guide Buttons and Guides 4 The Yellow Line Straightening Guide Button Toggling on this button enables disables the set of 3 Yellow Targets in the Preview Window The Green Line Straightening Guide Button Toggling on this button en ables disables the set of 3 Green Targets in the Preview Window The Line Straightening Guides 5 These groups of colored boxes are individually clicked and dragged to positions along a line that should be straight for subsequent correction application By applying both sets of guides to the same or different lines the degree of accuracy of the correc tion is usually improved A guide target in the Magnification Window which corresponds to the cur rent
23. g the Control Key You can also fine tune by moving the mouse to the Magnification Window and dragging the small target there 6 Click the CORRECT button 7 If the results look good click the Check Button at the lower right corner of the User Interface to apply the correction or continue to another correc tion type 8 In most cases a better result will be obtained if a second set of targets is used elsewhere in the image Click on the Green Straightening Guide Button and place these three additional targets on a single line anywhere from the edge to about half way in between the edge and the center of the image Note that either set of guides can be on a line that is horizontal vertical or at an angle Lines going toward the center like spokes on a bike won t work Now click the CORRECT button again 9 If the results are still not what you want it is usually because the targets are not adequately aligned or a very wide angle lens with unique charac teristics is being used Do one of the following If you are using a wide angle lens switch to Specific Lens in Step 1 From the pull down menu select Alternate Barreling Click on the CORRECT Button again Start with Alternate Barreling or any zoom lens under Specific Lens Hold down the Control key while you click the CORRECT button This searches all Specific Lenses for a best fit If that doesn t work switch to Expert Mode bottom right Choose Generic Lens under
24. icked a second time 3 0 THE USER INTERFACE NOVICE MODE ANNOTATED 3 1 The NOVICE User Interface at a Glance The LensDoc Filter opens with the main User Interface shown below STEP 1g Et Fix Distortion 2 arenes Fix Rectangles gt O specific Lens Fix Parallels Fix Rotation Generic barreling 6 STEP oo geel 6 gt correct REVERT lt 7 NOVICE MODE Select distortion mode In distortion mode you can straighten lines curved by barrel or pincushion distortion 1 4 gt 0 A F EXPERT MODE 3 2 The NOVICE User Interface Work Areas The primary work areas in the NOVICE User Interface are 3 2 1 The Preview Window 1 This window provides previews of the Input Image and subsequent applications of corrections by the filter Andromeda LensDoc Filter 3 2 2 The Lens Type Selection 2 A choice of radio buttons is provided to select either GENERIC or SPECIFIC lens mode o Generic Lens When Generic Lens is selected a special set of generic curves is searched and the best fit among them is selected In Expert Mode a pull down list of types appears with the number of individual curves for that group displayed at the right of the group name o Specific Lens When Specific Lens is selected a pull down menu appears which contains groups of lens settings for most camera manufacturers When the preset is selected those settings are used to apply lens correction The four categories of specific lens
25. ion 3 2 3 The Fix Type Selection 3 2 4 The Magnification Window 3 2 5 The Mode Cancel and Check Buttons 0000us 4 0 THE USER INTERFACE EXPERT MODE ANNOTATED 0 00000 4 1 The EXPERT User Interface ata Glance 4 2 The EXPERT User Interface Work Areas 4 2 1 The Line Straightening Guide Numeric Values is 4 2 2 The Less More Slider 4 2 3 The Center Edge Slider 4 2 4 The Scale Slider 00 4 4 2 5 Graph Mode User Interface 4 2 6 Auto Scale Button 4 2 7 Import Lens Description Button 4 2 8 Export Lens Description Button 5 0 LENSDOC SESSIONS 0 000 e ee ese se 5 1 Lens Distortion Correction Novice Mode Generic Lens Correction 0 0000eeeeuues 5 2 Lens Distortion Correction Expert Mode Generic Lens Correction 00000eeeeese 5 2 1 Generic Sliders 000 Page iv 5 2 2 Scaling Control n n ER Ga EER DRAERS 22 5 2 3 Saving OF Settings 5 kaina Br BERE os 22 5 3 Lens Distortion Correction Expert Mode Specific Lens Correction 23 5 4 Rectangles Correction 2000000ee 23 5 5 Parallels Correction 0 00000e0 ees 24 5 6 Rotation Correction 00008 25 60 GLOSSARY st in oe rs sk e e ra i SEN i 26 6 1 General ces usa ss ke ks ews si sa 26 6 2 LensDoc Terms aa eee eee eens 27
26. lines that are curved and should be straight Expert Mode additionally provides for correction using sliders to adjust the amount of correction The Expert Mode also provides users with the tools to save specific adjustments that apply to their lenses and control image cropping Both Novice and Expert Modes allow the selection of either Generic or Specific lens corrections Generic correction provides the user with a group of settings that work well for many lenses Specific correction is used for specific lenses in the LensDoc encyclopedia user saved settings and special effects NOTE Because LensDoc applies a correction based on a full image it is essential that images not be cropped before applying the filter As an alternative a cropped image can be carefully placed in its original position on a larger canvas Page 4 2 0 HELP amp QUICK START TUTORIAL 2 1 Help Installation Help For help with installation and other issues visit http an dromeda com main tech_support php Helper Window A Helper Window is located at the bottom of the LensDoc User Interface As you pass the cursor over any User Interface item but tons windows controls etc appropriate descriptive text automatically appears in the Helper Window to facilitate a quick understanding of the User Interface components Sessions Chapter 5 of this manual contains LensDoc tutorial sessions These sessions exercise the important features of the Filter tha
27. ll down Menu to select 35mm lenses gt Canon gt Canon EF 35 80 Again use only the green targets centered on an outer line turn off the yellow targets Click on the CORRECT Button You will see essentially the same results that were achieved under generic correction with two sets of marker points The improved results in this case are due to the fact that this is the lens that was used to make this image You will also see a slider under the CORRECT button that shows the focal length that was used to photograph the image If your personal lens is not available within the list of specific lenses it is possible to generate your own specific corrections see tutorial on Creating Custom Lens Groups in the Appendix to achieve similar results with one Page 18 set of targets 12 To see one more powerful type of lens correction select Alternate Barreling from the first group of choices in the Lens Pull down Menu Use both sets of targets Now hold down the Control Key while you click on the CORRECT Button LensDoc will search the entire encyclopedia of specific lenses for a best fit In many cases it will correctly identify the lens that was used in photographing the original image 35 7777 20 FOCAL 35 LENGTH 13 Now try moving the Focal Length Slider to see the effect this has on the image You will see a change in the correction effect In some images sharp edges or lines are hard to find so the automatic cor
28. ly selected guide target in the Preview Window can be clicked and dragged to fine tune the actual placement of the target along the line that the user is trying to correct Page 10 NOTE If one or more guide targets appears absent during an attempted correction this is usually the result of it being hidden outside the visible area of the image in the Preview Window by a correction that has been applied This situation is easily resolved by using the REVERT Button to undo one or more corrections which subsequently provides access to the desired guides for further adjustment The corrections can then be re applied The CORRECT Button 6 Clicking on the CORRECT button applies the correction which has been designed by either one or both sets of line straightening guides The REVERT Button 7 Clicking on the REVERT button will undo the effects of the CORRECT button application o Fix Rectangles Radio Button When Fix Rectangles is selected controls appear that provide for viewpoint adjustment in an image Make Rectangle Button 1 After the green and yellow Parallel Line Guide Targets are positioned around an STEP 2 element the Make Rectangle Button is depressed to sou initiate viewpoint adjustment delf lt 2 LT 3 gt HORIZONTAL SCALE The REVERT Button 2 Clicking on the REVERT button will undo the effects of the Make Rectangle button The Horizontal Scale Slider 3 Horizontal scale De x aspe
29. mage has an aspect ratio of 1 Barreling A type of lens distortion that causes straight lines at opposite sides of an image to bow away from each other Convergence A type of perspective distortion that causes parallel objects to appear to come together For example photographing a tall building upward from its base will produce this effect Divergence A type of perspective distortion that causes parallel objects to appear to separate For example photographing a tall building downward from its top will produce this effect Keystone Distortion Perspective Distortion causing parallel elements to appear non parallel This is a type of Perspective Distortion Convergence and Divergence are Keystone Distortions Lens Distortion Imperfections in an image due to lens optics Perspective Distortion Distortion of an image due to the angle from which an image is taken Page 26 Pincushioning A type of lens distortion that causes straight lines at opposite sides of an image to bow towards each other 6 2 LensDoc Terms 1 Correct Button This button applies automated correction to the current marker settings 2 Correction Type Refers to which type of distortion is being corrected the correction type radio buttons change from red to black when that particular correction is applied 2a FIX DISTORTION Correction of Pincushioning and Barreling Distortion see above 2b FIX RECTANGLES Adjustment of the viewpoint f
30. rection 1 To adjust rectangles in either Novice or Expert Mode select FIX RECTANGLES under STEP 1 2 ss EE Step 1 right column AE ee Fix Rotation 2 Select the image element that you wish to make perfectly square Using the same procedure illustrated for lens correction drag and align the set of yellow targets onto the corners of this element This is illustrated on page 25 Fix Distortion Fix Rectangles Fix Parallels Fix Rotation we n ever HORIZONTAL SCALE A wy O NOVICE MODE a EXPERT MODE 4 Andromeda LensDoc Filter STEP 2 3 Click on the MAKE RECTANGLE But ton under STEP 2 to apply the correction make C Revert REVERT will return the image preview to its pre corrected state In EXPERT MODE the horizontal and overall scale can be adjusted using the sliders to achieve a more accurate correction 4 If you are satisfied with the settings the correction can be applied by clicking on the check mark at the lower right hand corner of the filter Al ternately you can perform a rotation correction before applying the filter You can also return to the lens correction FIX ROTATION to further fine tune the results The color of the Correction Radio Buttons under step 1 indicates which corrections have been applied Black means applied red means not applied 5 5 Parallels Correction STEP 1 ixDistorticoe 1 To correct perspective distortion in either Fix Rectangles
31. rection can only provide an approximation of what is desired In these cases manual adjustment of a slider can prove very useful for fine tuning Note that when GENERIC LENS is chosen under Step 1 sliders are only available in EXPERT mode 14 We could apply the correction to the image by clicking on the Check Mark We will first correct perspective and rotation but first notice that the radio button labeled FIX DISTORTION at the upper right in the User Interface has turned black This means that the correction was applied Since neither of the other corrections has been applied the other two FIX Buttons are red Now click on the FIX PARALLELS Button 15 We wish to correct the divergence distortion that causes the outer lines to move away from each other spanning from the bottom to the top of the image In the Preview Window there are two sets of targets Place the yellow set on one outer vertical line and the green set on the opposite outer vertical line Now click on the MAKE PARALLEL Button The image sides should now be parallel 16 Finally we will correct the rotation Click on the FIX Rotation Button Align the two yellow targets far apart along the bottom line Click on the ALIGN HORIZONTAL Button the one with the horizontal arrow The im age should now look fully corrected EXAMPLES Please try this procedure on the two practice images provided These have Andromeda LensDoc Filter suggested target placements
32. rom off angle to square 2c FIX PARALLELS Correction of Convergence and Divergence see above 2d FIX ROTATION Corrects for angular rotation of important image ele ments that should be horizontal or vertical For example this can be used to ensure that the horizon is truly horizontal in an image or a flagpole is truly vertical 3 Filter Mode A switch along the bottom of the filter which chooses between Novice and Expert Mode 3a Novice Mode Provides a user friendly interface that provides for cor rection of all of the types described above with a simplified interface 3b Expert Mode In addition to all Novice Mode functions this mode provides manual sliders for overriding some automated corrections and manual control of scaling Additionally the user has the capability to save user selected settings Expert mode also has informative numeric values shown to allow for a more accurate correction or adjustment 4 Graph Mode The Graph Mode Button is only available in Expert Mode using lens distortion correction The User Interface can be toggled between the standard image preview and a display of the curves that make up the current lens correction Andromeda LensDoc Filter 5 Lens Correction Type Selects between two basic groups of corrections each with several subtypes This is part of Step 1 under Lens Correc tion 5a Generic Lens This consists of a group of corrections that work well for many lenses The specifi
33. t are used to correct the various types of barreling and pincushioning Web site www andromeda com is a source of additional visuals and infor mation related to the LensDoc Filter product Andromeda Software s Adobe Photoshop plug in demos are available for free downloading as well as the fully functional versions for online purchase 2 2 Quick Start Tutorial 2 2 1 Fix Lens Distortion 1 With your image open in Photoshop open LensDoc under Filters gt Andromeda gt Lensdoc 2 Make sure the Novice Mode Radio Button at the bottom right is se lected 3 Under Step 1 choose FIX DISTORTION from the right column and GENERIC LENS from the left column 4 Under Step 2 click on the Yellow Guide Button with 3 yellow squares to place Straightening Guide Targets in the Preview Window if they are not already present If no X is present on the Green Guide Button turn the button off by clicking on it to remove the Green Targets 5 Align the three Yellow Targets along a curved line that should be straight Andromeda LensDoc Filter Choose a line near the edge of the image if possible and don t space the targets too close Drag the targets to the desired location After you have reached the approximate point of placement you can refine the adjustment by pressing the Keyboard CONTROL Key and observe the movement of the target that appears in the Magnification Window Release the Mouse Button before releasin
34. tered file can be saved under the original name 5 Repeat this for canon S10 8 txt canon S10 10 txt canon S10 013 txt entering the respective focal lengths as 8 10 and 13 6 Now re open Photoshop Open the image canon S10 example1 JPG Under either Novice or Expert Mode choose Specific Lens and select your new custom preset group canon S10 You should see a slider with numbers from 6 to 13 Align one set of targets along one of the outer lines When you click on the CORRECT Button you should see a good correction and the lens focal length selected should be near the 6 7 You can repeat this for canon S10 example2 JPG canon S10 exam ple3 JPG taken at focal lengths of 8 and 13mm Note that good correc tions will result even if the exact focal length of the lens is not identified Interestingly the lens in this example has little distortion so the correc tions applied by LensDoc are small Nevertheless the principles should apply to all lenses 8 When creating your own correction setsf irst try the Generic Cor rections since this will work in many cases If this does not suffice try searching all of the Specific Lenses Remember that you perform this by selecting Alternate Barreling from the Lens Selection Pull down Menu you can actually use any specific zoom lens Next search the encyclo pedia by holding down the Control Key while clicking on the CORRECT Button Use the correction that produces the best results An
35. tion Fix Rectangles Generic Lens D Sarie Lane Fix Parallels Fix Rotation Generic barreling 6 1 N STEP 2 oPo pie NOVICE MODE Point to any item to get help on how to use it A O EXPERT MODE Page 16 7 Now click on the CORRECT button The lines should look straight To see the difference the correction made you can revert to your original setting by clicking the REVERT button If you are satisfied with the settings click on the CORRECT or REVERT button again Although the correction can be applied by clicking on the Check Mark at the lower right hand corner of the filter wait to render the correction If you look carefully at the image you will see that the inside lines don t look as Straight as the outer line This can be improved in two ways One is described below the other follows in the Expert Mode section 8 In many cases the correction is more accurate if a second set of targets is added towards the center of the image These target points should be placed on a single line about half way between the outer edge and the center of the image Now activate these target points by clicking on the Yellow Line Straighten ing Guide Button the button with 3 yellow guides and place the targets as suggested in the image below s STEP 1 Fix Distortion Fix Rectangles Generic Lens iy Sancti tic tem Fix Parallels Fix Rotation Generic barreling 6 lt S
36. tions are described as follows 5 2 1 Generic Sliders 2 1 After generic lens correction using one or two sets of guides has been Pol ee Ed 0 0000 correct REVERT Andromeda LensDoc Filter performed the image can be fine tuned using two generic sliders Less More and Center Edge Although these sliders interact with each other the Less More Slider basically con trols the amount of correction applied The Center Edge Slider adjusts how much of the correction occurs throughout the image versus just near the edges The Numeric Indicator under the straightening guide buttons show how well your targets line up 000000 being the best 2 You can choose to perform the a lens distortion correction manually using only the sliders In this case select the desired type of correction from the Lens Pull down menu The available generic corrections are Generic Barreling For correction of barreling distortion of wide angle lenses Generic Extreme Barreling Best used with wide angle adapters Generic Pincushioning For correction of pincushioning of telephoto lenses Alternate Barreling For correction of the behavior of certain fixed focal length very wide angle lenses To access the Alternate Barreling correc tion you must choose Specific Lens under Step 1 In each case the Less More Slider affects the strength of the correction and the Center Edge Slider affects how the correction is spread from the cent
37. urns to the last corrected state Sometimes applying one correction type for example FIX DISTORTION will hide the Straighten ing Guides when another correction type is attempted In this case any of the corrections can be reverted guides readjusted and each correction re ap plied The color of the correction type radio buttons serves as a reminder of which corrections have actually been applied Red indicates that the correction has not been made black indicates that it has Scaling Adjusts the size of the image between saving all of the original image verses cropping the image a little to remove black edge or corner Andromeda LensDoc Filter 7 0 APPENDICES 7 1 Creating Custom Zoom Lens Groups Custom groups for a specific zoom are especially useful to provide for visual correction of images when there are not strong lines for placement of Automatic Markers It also makes automatic correction more accurate even when only one set of targets is used 1 To create a setting for a spe cific lens you will need to start by photographing a very straight target Examples of targets in clude architectural structures or custom targets such as weighted narrow ropes For macro work use straight pins or nails It is best to have long straight lines near the far edge of the image and about 1 3 and 1 2 of the way between the center and edge For a zoom lens shoot at several focal lengths and keep records of these settings in the image
38. uto Scale mode is clicked off a slider appears that provides for controling re scaling of the image to choose the tradeoff between black pixels and pixels lost beyond the edges of the image perimeter When FIX RECTANGLES is also selected a slider for Horizontal Scale will be present The aspect ratio can be adjusted using ths slider Exact numeric changes are shown in the white text box located directly above the MAKE SQUARE button 4 2 7 Import Lens Description Button 7 This feature provides the capabil ity to dynamically import additional lens descriptions from a file or folder Clicking on this icon will open a Load Preset File window that provides the capability for the user to browse through folders on the system to locate a specific preset to load into the Lens Preset Pull down Menu List 4 2 8 Export Lens Description Button 8 This feature provides the capa bility to dynamically export lens descriptions based on current parameter settings Clicking on this icon will open a Save a New Preset window that provides the capability for the user to browse through folders on the system to locate a specific folder to store the lens preset to be saved 5 0 LensDoc SESSIONS 5 1 Lens Distortion Correction Novice Mode Generic Lens Correction 1 In Photoshop open the image Barreling grid jpg This is an image with moderate barreling type distortion This image can be found in the set of tutorial images that were installe
Download Pdf Manuals
Related Search