Page 2 - Color management; Adobe Photoshop CS4 for Photographers; The need for color management; That in a nutshell is a problem which has bugged many; The way things were
Color management Adobe Photoshop CS4 for Photographers 2 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. The need for color management An advertising agency art buyer was once invited to address a meeting of photog...
Page 3 - Figure 1; The picture on the left shows how; These days a significant number of photographers,
Color management Adobe Photoshop CS4 for Photographers 3 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 1 The picture on the left shows how you might see an image on your screen in Photoshop and the one on ...
Page 4 - Figure 2; While some digital devices may look; Why not all RGB spaces are the same; Some computer monitors have; RGB devices
Color management Adobe Photoshop CS4 for Photographers 4 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 2 While some digital devices may look identical on the outside, they’ll all have individual output cha...
Page 5 - The versatility of RGB; Real World Color Management; Color vision tricker y; Why We See What We Do
Color management Adobe Photoshop CS4 for Photographers 5 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. The versatility of RGB A major advantage of working in RGB is that you can access all the bells and whistles ...
Page 6 - Output-centric color management; Figure 3; Beyond CMYK
Color management Adobe Photoshop CS4 for Photographers 6 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Output-centric color management Printers who work in the repro industry naturally tend to have an ‘output-cen...
Page 7 - Profiled color management; A workspace profile is therefore a useful piece of; Figure 4; Even if you have never been to
Color management Adobe Photoshop CS4 for Photographers 7 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Profiled color management The objective of profiled color management is to use the measured characteristics o...
Page 8 - Color Management Modules; If an ICC profile is embedded in the file, Photoshop; Tolerance Approach to Punctuation
Color management Adobe Photoshop CS4 for Photographers 8 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Color Management Modules The International Color Consortium (ICC) is an industry body that represents the lea...
Page 9 - Figure 6; Photoshop can read or make use of; Figure 5; A color management system is able
Color management Adobe Photoshop CS4 for Photographers 9 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Photoshop uses the monitor display profile information to render a color correct preview on the monitor scree...
Page 10 - The ideal RGB working space; Choosing an RGB workspace; If you are using Photoshop 6.0 or later it matters less
Color management Adobe Photoshop CS4 for Photographers 10 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. The ideal RGB working space If you select an RGB workspace that is the same size as the monitor space, you a...
Page 11 - ColorMatch RGB; Figure 7; A CMYK color space is mostly
Color management Adobe Photoshop CS4 for Photographers 11 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. unsuitable for photography or serious print work. This is mainly because the sRGB space clips the CMYK gamut...
Page 12 - Profiling the display; In Chapter 3 I mentioned some of the equipment and; Figure 8; Good color management is ver y much; Eyeball calibration
Color management Adobe Photoshop CS4 for Photographers 12 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Profiling the display To get color management to work in Photoshop you have to calibrate and profile the scr...
Page 13 - Calibration and profiling
Color management Adobe Photoshop CS4 for Photographers 13 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Calibration and profiling Profiling devices can be attached to the screen via rubber suckers to a CRT, or hu...
Page 14 - Profiling the input; Camera profiling is a lot trickier to do and few; Profiling the output; Figure 9; The ProfileMaker ProTM interface.; Camera Raw profiling
Color management Adobe Photoshop CS4 for Photographers 14 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Profiling the input Input profiling is possible but it’s easier to do with a scanner than it is with a digit...
Page 15 - Figure; Once a print profile has been printed
Color management Adobe Photoshop CS4 for Photographers 15 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 11 This Kodak™ color target can be used to construct a color ICC profile. A profile ser vice company ...
Page 17 - Photoshop color management interface; All the Photoshop color settings; The Color Settings; The default settings are just
Color management Adobe Photoshop CS4 for Photographers 17 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Photoshop color management interface By now you should be acquainted with the basic principles of Photoshop ...
Page 18 - I would recommend that you follow the advice in; Here is a full list of the preset
Color management Adobe Photoshop CS4 for Photographers 18 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. I would recommend that you follow the advice in Figure 15 and change this default to one of the prepress set...
Page 19 - Profile mismatches and missing profiles; If the Preser ve Embedded Profiles
Color management Adobe Photoshop CS4 for Photographers 19 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. color space. The same policy rules apply to CMYK and grayscale files. Whenever Preserve Embedded Profiles is...
Page 20 - Convert to Working space; Include a ‘Read Me’ file; If the Convert to Working RGB
Color management Adobe Photoshop CS4 for Photographers 20 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Convert to Working space If you select the Convert to Working space policy, Photoshop automatically converts...
Page 21 - Color Management Off; If the Color Management Off policy; When it is good to ‘turn off’; If the Ask When Opening box is
Color management Adobe Photoshop CS4 for Photographers 21 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Color Management Off The other option is to choose Color Management: Off. When this option is selected Photo...
Page 22 - Profile conversions; Convert to Profile
Color management Adobe Photoshop CS4 for Photographers 22 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Profile conversions As you gain more experience you will soon be able to create your own customized color se...
Page 23 - The Convert to Profile command is also useful when; The profile list will display all the
Color management Adobe Photoshop CS4 for Photographers 23 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. modes are segmented in this way, it will make it easier for you to access specific types of profiles when ca...
Page 24 - Assign Profile; The Assign Profile command is available from the Edit menu in; Incorrect sRGB profile tags; This can be resolved by going to
Color management Adobe Photoshop CS4 for Photographers 24 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Assign Profile When an image is missing its profile or has the wrong profile information embedded the color ...
Page 25 - Profile mismatches when pasting; If the Profile Mismatches: Ask When; Paste mismatch warning
Color management Adobe Photoshop CS4 for Photographers 25 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 27 If you attempt to paste image data from a document whose color space does not match the destinatio...
Page 26 - Saving a Color Setting
Color management Adobe Photoshop CS4 for Photographers 26 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Saving a Color Setting If you have configured the settings to suit a particular workflow, you can click on t...
Page 27 - Reducing the opportunities for error; It is important to be aware of these potential problems; It helps to do a little detective work to
Color management Adobe Photoshop CS4 for Photographers 27 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Reducing the opportunities for error When you adopt an RGB space such as ProPhoto RGB as the preferred works...
Page 28 - Adobe RGB
Color management Adobe Photoshop CS4 for Photographers 28 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 30 The purpose of this illustration is to show what happens if you submit an RGB file to a Photoshop ...
Page 29 - If the person you are supplying the file to is in the same
Color management Adobe Photoshop CS4 for Photographers 29 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. are supposed to look like is to supply a printed output. In fact this is considered routine when supplying i...
Page 30 - Working with Grayscale; Grayscale for screen display
Color management Adobe Photoshop CS4 for Photographers 30 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Working with Grayscale Grayscale image files can also be managed via the Color Settings dialog. The color ma...
Page 31 - Advanced Color Settings; Custom Gray space settings
Color management Adobe Photoshop CS4 for Photographers 31 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Advanced Color Settings The advanced settings normally remain hidden, but if you click on the More Options b...
Page 32 - Conversion options
Color management Adobe Photoshop CS4 for Photographers 32 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Conversion options You have a choice of three Color Management Modules (CMMs): Adobe Color Engine (ACE), App...
Page 33 - Blend RGB colors using gamma; In this example we have a pure RGB; Desaturate monitor colors
Color management Adobe Photoshop CS4 for Photographers 33 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Blend RGB colors using gamma This item allows you to override the default color blending behavior. There use...
Page 34 - Custom RGB and workspace gamma; You can use the Custom RGB dialog
Color management Adobe Photoshop CS4 for Photographers 34 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Custom RGB and workspace gamma Expert users may wish to use an alternative custom RGB workspace in place of ...
Page 35 - RGB to CMYK; CMYK setup; Photoshop CMYK myths
Color management Adobe Photoshop CS4 for Photographers 35 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. RGB to CMYK Digital scans and captures all originate in RGB but professional images are nearly always reprod...
Page 36 - Once you have configured a new CMYK workspace; When you select the Custom; Ink Colors
Color management Adobe Photoshop CS4 for Photographers 36 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Once you have configured a new CMYK workspace setting, this will become the new default CMYK workspace that ...
Page 37 - Dot gain
Color management Adobe Photoshop CS4 for Photographers 37 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 35 Here is a screen shot of the Custom Ink Colors dialog. For special print jobs such as where non-st...
Page 38 - Black generation; Proof
Color management Adobe Photoshop CS4 for Photographers 38 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Gray Component Replacement (GCR) The default Photoshop setting is GCR, Black Generation: Medium, Black Ink L...
Page 39 - You may be interested to know that I specifically used; Here is a view of the Channels
Color management Adobe Photoshop CS4 for Photographers 39 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. You may be interested to know that I specifically used a maximum black generation setting to separate all th...
Page 40 - US printing
Color management Adobe Photoshop CS4 for Photographers 40 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 38 These separation guidelines reflect a typical range of settings one might use for each type of pre...
Page 41 - Choosing a suitable RGB workspace
Color management Adobe Photoshop CS4 for Photographers 41 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Figure 39 This example shows what happened to a Lab mode color image that was converted to CMYK once via Ado...
Page 42 - Rendering intents; Convert to Profile command; The default rendering intent is set
Color management Adobe Photoshop CS4 for Photographers 42 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Rendering intents When you make a profile conversion such as when converting from RGB to CMYK, not all of th...
Page 43 - Relative Colorimetric; You can also change the rendering
Color management Adobe Photoshop CS4 for Photographers 43 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Relative Colorimetric Relative Colorimetric is the default rendering intent utilized in the Photoshop color ...
Page 46 - Fine-tuning the CMYK endpoints
Color management Adobe Photoshop CS4 for Photographers 46 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Fine-tuning the CMYK endpoints You can use the black point and white point tools in the Levels or Curves adj...
Page 48 - CMYK to CMYK; Mode menu and the Convert to Profile
Color management Adobe Photoshop CS4 for Photographers 48 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. CMYK to CMYK It is not ideal for CMYK files to be converted to RGB and then converted back to CMYK, as this ...
Page 49 - Let’s just say that there are no right or wrong answers; Info panel; When you are editing an RGB
Color management Adobe Photoshop CS4 for Photographers 49 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. back to RGB again. While it is true that Luminosity blend mode sharpening is not exactly the same as sharpen...
Page 50 - When you are retouching a portrait (such as in Figure; Keeping it simple; You can use the CMYK values in the
Color management Adobe Photoshop CS4 for Photographers 50 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. values between the RGB and CMYK Info panel readouts, there will always be more cyan ink used in the neutral ...
Page 51 - Adobe; To order the book; as well as through the
Color management Adobe Photoshop CS4 for Photographers 51 This chapter on Digital Capture is provided free with the Adobe Photoshop CS4 for Photographers book. Not for distribution or resale. Adobe ™ Photoshop ™ CS4 for Photographers This PDF on color management is supplied on the DVD that comes wit...
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