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If you use specific color spaces, you must ensure that all other software, printing, etc.
that operates on that source uses the same color space. Color spaces are an
advanced topic -- use them only if you understand and need them.
The Scanner color space is the color space used by a scanner, raw scan file or raw
digital camera file. It is also the name of the ICC file that gets written when "Profile |
Profile scanner" is chosen. There are two options for Scanner color space - built-in,
which is the color space of a pre-profiled scanner, and "ICC profile", which is an ICC
profile produced by the "Profile | Profile scanner" command.
The Printer color space is used to control how the colors look when they are sent to
your printer. You should normally use the default setting unless you're profiling your
printer.
The Film color space is an advanced option for adjusting for the color of film stocks.
The Output color space is used when writing images to JPEG, TIFF, PDF and Index
files.
Note that if you use the Apple RGB, ColorMatch RGB, ProPhoto RGB or ECI RGB color
space, the image gamma will be 1.8. If you use any other color space, the image
gamma will be 2.2.
You can change the image gamma by using the "Color | Image brightness" option.
This is a multiplier of the gamma of the color space chosen.
The Monitor color space is the color space used to display images in the Preview and
Scan tabs. The default value is usually correct for most systems.
Basic Option: This option is always displayed.
Color | Scanner/Printer/Film/File/Monitor ICC profile
(Professional Edition only)
If you set this option to "ICC profile", you can specify the name of an ICC profile.
The Scanner, Printer and Film ICC profiles are normally read-only, but will also be
written when the "Profile | Profile scanner/printer/film" commands are used.
Advanced Option: This option is displayed when the color space is set to "ICC profile".
Color | Scanner/Printer/Film ICC description
(Professional Edition only)
Use this option to add a description to the ICC profile when it's created. This
description is used by programs like Photoshop(TM) to identify a profile.
Advanced Option: This option is displayed when the color space is set to "ICC profile".
Color | Scanner/Printer/Film IT8 data