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Collecting, capturing, and scanning images
This workflow begins by acquiring digital images or creating them in-house. If you take
photos with a digital camera, check the camera settings to see if you can save images
in the standard Adobe RGB color space or in RAW format. (For information on how
to use files saved in RAW formats, see Adobe Camera Raw in Chapter 4, RGB Photo
Workflow.) If you scan images, check to see if the scanner software can save images
using the Adobe RGB color profile or, if you prefer to work with CMYK files, the U.S.
Web Coated (SWOP) v2 color profile.
Editing images in Photoshop CS2 (RGB or CMYK)
Images that you open in Photoshop CS2 might be in a CMYK or RGB color space. If
you created or captured them using the settings described in "Collecting, capturing and
scanning images," they are already using a standard color space. However, images from
other sources might not have embedded profiles, or the profile that is embedded might
not match the profile you are using in your workflow. If a Missing Profile or Profile
Mismatch dialog box appears when you open an image, ask the provider if the profiles
you have set in your workflow can be used. Use the warning dialog boxes to assign the
proper profile to your image.
For information about Missing Profile and Profile Mismatch warning dialogs, see
"Chapter 6: Advanced Topics."
For information about relative color space sizes, see "Chapter 6: Advanced Topics."
When opening an RGB image in Photoshop CS2 with North America Prepress 2 color
settings, a warning dialog appears if there is no profile embedded in the image or the
embedded profile is not Adobe RGB, the default RGB profile for this workflow. Use the
embedded profile in the RGB image. This is the profile used by the provider of the image
document before it was sent to you. This profile will be used when the RGB colors are
eventually converted to CMYK for printing.
You can use the embedded profile if it is a standard working space and not a device color space.
Using the embedded profile allows you to open the image and view the colors accurately
without converting the color values from one color space to another. For example, if you
open images with the embedded ProPhoto RGB or sRGB profiles, Photoshop CS2 pre-
views those files based on those color spaces. As a result, it is not necessary to convert
the image to the RGB working space.
Note: If the embedded profile is a device-dependent camera or scanner profile, you
might want to select Convert Document Colors to the Working Space in the Embedded
Profile Mismatch dialog box for two reasons. First, equal amounts of R, G, and B always
produce a neutral gray in working spaces, so standard working spaces give you more
predictable color that is easier to edit. Device-dependent profiles might not have this
attribute. Second, this working space profile file size is smaller than device-dependent
camera and scanner profiles.
Color Workflows for Adobe Creative Suite 2
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