Color Management or Why Don t My Prints Match My Screen???

Transcription

1 Color Management or Why Don t My Prints Match My Screen??? Cathy Cakebread February 3,

2 Agenda What is Color Management? Terminology Camera Setup and Shooting Monitors Printer/Paper Profiles Printing Troubleshooting 2

3 Terminology 3

4 What is Color Management? The ability to consistently create prints that reflect the true and/or intended colors Key Components: Camera, Monitor, Software and Printer and Scanner (if Applicable) 4

5 Color Modes Image Mode (in Photoshop) RGB Red, Green and Blue Additive Monitors Inkjet Printers CMYK Cyan, Magenta, Yellow, Black Subtractive Professional Offset Printing Monitor Projected Color Printed Page Reflective Color 5 Copyright Cathy Cakebre

6 RGB vs. CMYK Monitor and Ink Jet Printer Offset Printer 6 From Wikipedia Annette Shacklett

7 Gamut Gamut the subset of colors which can be accurately represented in a given circumstance Wikipedia The grayed-out horseshoe shape is the entire range of possible chromaticity's. The colored triangle is the gamut available to a typical computer monitor; it does not cover the entire space. Wikipedia 7 From Wikipedia - Han-Kwang Nienhuys

8 Color Space The Range Of Colors Available For You Work With Standard Color Space Options: srgb Adobe RGB (1998) ProPhoto A wide range of colors can be created by the primary colors of pigment (cyan (C), magenta (M), yellow (Y), and black (K)). Those colors then define a specific color space. Wikipedia 8 Diagrams are from - it no longer exists

9 Color Space Comparison 9 From Layers Book

10 ProPhoto or Adobe RGB or srgb? ProPhoto *** (My Favorite) Most Possible Colors Default for Lightroom! Adobe RGB More Colors Than srgb srgb Fewest Number of Colors Service Bureaus Often Use srgb including, Blurb, Costco, MPIX 10

11 Lightroom Settings Preferences External Editing 11

12 Photoshop Color Settings Edit Color Settings 12

13 Open In Photoshop With Mismatch Pick the one with the highest number of colors! And Make ProPhoto your working space! 13

14 Open In Camera Raw 14 Double click on this line to change the default values for when you open an image in Photoshop from Camera Raw

15 Camera Settings 15

16 Camera Color Space Camera Menu Look for Option like Color Space Set to the Option With the Widest Possible Color Space e.g., Adobe RGB vs. srgb Note: Most Cameras Will Not Have a ProPhoto Option and Some Cameras May Not Have Any Color Space Option 16

17 White Balance My Suggestion: Set on Auto Easy To Forget Last Setting! Shoot Raw! Can Be Set in Lightroom and in Camera Raw 17

18 Shooting Shoot Gray Card And/or Color Checker Card for a Baseline Shoot for Each Lighting Condition 18

19 Monitors 19

20 Monitors High End vs. Low End e.g., EIZO Specs 4096 x 2160 native resolution 1500:1 contrast ratio (better blacks) $5,739 Self Calibrating? EIZO, Sony Artisan, Apple, HP Laptop Computers Controlling Colors is MUCH Harder 20

21 Monitor Placement Away From Light Sources e.g., Windows, Doors Close Curtains Shield Monitor from External Light Sources Foam Core Surround or Hoods Purist Approach Wear Only Dark Clothing Use Only Color Balanced Lights 5500k 6500k e.g., OTT Lights Watch the Color of Your Walls If They Are Not Neutral, They May Impact What You See Ideally Neutral Gray 21

22 Background Color Match to How You Will Frame the Image Edit Preferences - Interface 22

23 Calibrate Your Monitor Monitor Profile: Rules for How Colors are Displayed on Your Monitor Should Calibrate Regularly! Every Other Week Before a Big Job! Examples of Tools That Are Available: xrite i1displaypro xrite ColorMunki Display DataColor Spyder HP Dream Color 23

24 i1 (Eye One) Match Example Place Device on Monitor It then tries to find the Device Device Testing the Colors it Sees Software Creates a New Monitor Profile 24

25 Copyright Cathy Cakebread Color Checker and Lightroom 25

26 Color Correct In Lightroom In the Develop Module: Open Your Image with the Color Checker Click on W to Activate the White Balance Tool (like an Eyedropper) Click on the Gray Patch next to the White Patch This is a Good Starting Point You May Need to Make Additional Adjustments Sync Images with Similar Lighting 26

27 Then, Sync Images Select All Images With the Same Lighting Including the Color Checker Click on the Sync Button 27

28 And, Synchronize Check White Balance Only 28 Click the Synchronize button

29 Printer/Paper Profiles 29

30 Printer/Paper Profiles Paper Profiles: Rules for How to Print Using a Specific Printer and Paper Combination, The Computer Tells the Printer What to Do Always Use Applicable Printer AND Paper Profile Combination Options: Download from Paper Manufacturer Pay for Generic Profile Pay for Custom Profile 30

31 Using Printer/Paper Profiles Get Profiles from Paper Manufacturer: Download Profiles for the Specific Printer You Use Epson bin/store/support/supportindex.jsp?bv_usebvcookie=yes&oid= &infoType=Overview Canon top_printers/pixma_pro9500#driversandsoftware Hahnemuehle Harman Ilford 31

32 Details from Dry Creek Photo Place Profiles in Proper Location on Your Computer Varies by Type of Computer and Operating System Resource for Finding the Proper Location: Where to Put Your Profiles: Mac OS X (all versions): If your account has administrative privileges, storing profiles in /Library/ColorSync/Profiles allows all users to use them. An alternative area, for users without Admin privileges, is /Users/<username>/Library/ColorSync/Profiles any profiles stored here are available only to the current user. The ColorSync Utility gives access to the details of individual profiles, shows gamut plots, can rename profiles, and validates profile structure among other useful tasks. Windows 7, 2008, Vista, and XP: \Windows\system32\spool\drivers\color The easiest way to install a profile in Windows is to right click on the profile in Windows Explorer and select "install profile". Windows copies the profile to the correct directory automatically. Important note: If you are replacing a profile in Windows, the above shortcut does not work. The profiles must be manually copied to the correct directory for the original profile to be replaced. Microsoft has listed this as a bug since Windows 98. Windows 7 and Vista have a Control Panel applet that allows selecting default profiles for devices and manually installing profiles that are not already in the system profile directory. The functionality is limited, and a right-click automatic install or manually copying the profile to the system profile directory is much easier. Windows XP has a Control Panel Applet that emulates some of the functionality of Apple's ColorSync utility. It allows easy installation and removal of profiles, editing of internal and external names, viewing 3-D gamut plots, comparing two different profiles, and much more. This applet works on XP only; newer operating systems are not supported. Mac OS 9.x: System Folder:ColorSync Profiles Mac OS 9.x users who have difficulty loading profiles in Photoshop, please read this note. Windows 2000 and NT: \Winnt\system32\spool\drivers\color See above note for installing profiles in Windows XP - the same technique works in Windows Windows ME and 98: \Windows\System\Color 32

33 Printing 33

34 Before You Print Keep Paper in Sealed Bags Turn Printer Off When Not in Use Keep Additional Inks in the Freezer Read the Document That Comes with Your Paper Great Tips for Getting the Best Out of Your Paper Keep Instructions in Bag Shows What is The Top of the Paper Proof in Photoshop with Your Custom Profile Prior To Printing Been a While? Do a Nozzle Check 34

35 Printer Setup in Lightroom - PC File Printer Click on Properties Select Proper Generic Media Type Mode: Custom No Color Adjustment!! 35

36 Printer Setup in Lightroom - Mac File Print Settings Click on Layout and Select Printer Settings Select Proper Generic Media Type Set Color Mode to Off! (No Color Management) Note: If you Don t See Layout Click on the Arrow to the Right of the Printer Name 36

37 Print Job - Lightroom Print Resolution ppi Print Sharpening - Standard, Low, High - Varies Media Type Glossy or Matte Profile - Paper/Printer Combination Rendering Intent - Perceptual For Bright Colors, Relative May Clip Bright Colors (Experiment and See Which You Prefer) 37

38 Print From Photoshop Photoshop Manages Color Yes! Printer Profile Paper/Printer Combination Rendering Intent - Pick Based on Image Black Point Compensation Check Click on Print Settings Check - Match Print Colors and Gamut Warning 38

39 Mac Version 39

40 PC Version 40

41 Custom Profiles For Each Paper and Printer You Use! Buy Custom Profiles drycreekphoto.com Photo Spectrophotometer Create Your Own Custom Profiles Takes into Consideration Age of Paper, Age of Ink Built Into High End Monitors EIZO, Sony, HP, Apple Try Target Sheets For Monitor and Printer 41

42 Experiment With Sample Targets Targets Examples from Tim Grey: 42

43 Make Your Own Test Strip Create a File With: Black to White Squares Squares With The Primary Colors Typical Images Text With Options Selected Setup Print Options Print Move Down the Page Print Again 43

44 Sample Test Strips I Made Note exactly what options you used 44

45 Sample Test Strip Image Note: I learned this technique from Kent Manske It is in the 4 th position on the page 45

46 PPI and DPI PPI Pixels Per Inch - Monitor DPI Dots Per Inch Print Standard Recommendation: 240, 300, 360 PPI 300 PPI* Play to See Which Works Best! 46

47 Troubleshooting / Conclusions 47

48 Troubleshooting Was Color Management for the Printer Turned Off? *** #1 Issue! Photoshop Manages Color! *** #2 Reason Check that the Proper Printer/Paper Profile: Is It Installed (Check Periodically for Updates)? Was it Selected When You Print? It May Switch Between Prints Paper Correct Side? Wet it Sticky Side is Where You Print Printer Issues: Ink Clogged? Perform a Nozzle Check Ink Levels Too Low or Too Old Don t Use 3 rd Party Ink! Low Quality Printer 48

49 And More Troubleshooting It is Too Hot! Non-Ideal Image and Paper Combination Monitor Not Calibrated Lately Enough PPI? Image Too Small for the Size You Wish to Print 49

50 Charles Cramer Tips Use a White Surround View Your Images As They Would Be Hung on The Wall Be Sure You Can See the Edges When Evaluating an Image Evaluating Your Image: You Can t Trust Your Eyes Check Your Histogram Use Your Info Palette to Check Values He Looks at the LAB Values Re-Orchestrate the Light to Draw Your Viewer s Focus Where Do You Want Them to Look? Lighten the Good Stuff and Darken the Other Areas Slightly Darken the Edges Shrink Image Down on the Monitor to See Where Your Eyes Go Highlights Should Enhance Your Composition, Not Detract He Prefers Open Shadows With Some Blacks Everything Looks Great on The Monitor, The Print is the Critical Judge 50

51 Conclusions This is Not Easy!! Set Camera to Largest Color Space Shoot Raw Calibrate Your Monitor! Let Lightroom/Photoshop Manage Colors Use the Proper Printer/Paper Profiles Turn Off Color Management in the Print Settings Screens You Should Expect to Make Multiple Test Prints 51

52 Resources Adobe A Color Managed Workflow Luminous Landscape Understanding ProPhotoRgb Adobe How Lighroom Manages Color Adobe Working with Color Profiles 9F79-4A9E9E3BA84C.html xrite Monitor Calibration Tools Dry Creek Photo Instructions re: Where to Put Printer/Paper Profiles and Good Information on Color Management and Profiles for Printing at Costco 52

53 Questions?? 53