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Last updated 1/14/2015
Chapter 17: Color management
Working with color profiles
About color profiles
Precise, consistent color management requires accurate ICC-compliant profiles of all of your color devices. For
example, without an accurate scanner profile, a perfectly scanned image may appear incorrect in another program,
simply due to any difference between the scanner and the program displaying the image. This misleading
representation may cause you to make unnecessary, time-wasting, and potentially damagingcorrections” to an already
satisfactory image. With an accurate profile, a program importing the image can correct for any device differences and
display a scans actual colors.
A color management system uses the following kinds of profiles:
Monitor profiles Describe how the monitor is currently reproducing color. This is the first profile you should create
because viewing color accurately on your monitor allows for critical color decisions in the design process. If what you
see on your monitor is not representative of the actual colors in your document, you will not be able to maintain color
consistency.
Input device profiles Describe what colors an input device is capable of capturing or scanning. If your digital camera
offers a choice of profiles, Adobe recommends that you select Adobe RGB. Otherwise, use sRGB (which is the default
for most cameras). Advanced users may also consider using different profiles for different light sources. For scanner
profiles, some photographers create separate profiles for each type or brand of film scanned on a scanner.
Output device profiles Describe the color space of output devices like desktop printers or a printing press. The color
management system uses output device profiles to properly map the colors in a document to the colors within the
gamut of an output devices color space. The output profile should also take into consideration specific printing
conditions, such as the type of paper and ink. For example, glossy paper is capable of displaying a different range of
colors than matte paper.
Most printer drivers come with built-in color profiles. It’s a good idea to try these profiles before you invest in custom
profiles.
Output device profiles Describe the color space of output devices like desktop printers or a printing press. The color
management system uses output device profiles to properly map the colors in a document to the colors within the
gamut of an output devices color space. The output profile should also take into consideration specific printing
conditions, such as the type of paper and ink. For example, glossy paper is capable of displaying a different range of
colors than matte paper.
Most printer drivers come with built-in color profiles. It’s a good idea to try these profiles before you invest in custom
profiles.
Document profiles (Not applicable to PDFs) Define the specific RGB or CMYK color space of a document. By
assigning, or tagging, a document with a profile, the application provides a definition of actual color appearances in the
document. For example, R=127, G=12, B=107 is just a set of numbers that different devices will display differently. But
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