Color Management for Photographers

Short Description
Use this tutorial to get a better grasp on what the three policies really do and how the warning check boxes affect the resulting behavior. Before you begin, be sure the Document Profile indicator is set by clicking the small black triangle seen at the bottom left of the document (see Fig. 9-5-1).

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Content
To start this tutorial, open the Color Settings in Photoshop by entering the Command/Control Shift K key command. Set your Color Settings to U.S. Prepress Defaults as seen in Fig. 9-5-2. Note that the RGB Working space is set to Adobe RGB (1998) and more specific to this tutorial, all the color policies are set to Preserve Embedded Profiles with all the warning check boxes on.
1. Open the Dog_in_Bowl.tif document that is in the Tutorial folder that shipped with this book.
2. Upon opening this document, you should get an Embedded Profile Mismatch dialog as seen in Fig. 9-5-3. This is because the document Dog_in_Bowl.tif has the sRGB profile embedded into the document. Notice that the radio button that is highlighted by default is set to Use the embedded profile (instead of the working space). The presently set and preferred RGB working space is Adobe RGB (1998) as seen toward the top of this dialog box next to the heading named Working. The reason the radio button is set to preserve the embedded profile (and thus sRGB) by default is due to the policy: Preserve Embedded Profiles. This policy ensures that the default option is to preserve the profile embedded in the document instead of the working space.
3. Keep the settings seen in the Embedded Profile Mismatch dialog as they appear in step 2, click OK, and the document will open. Notice that the document Profile indicator shows the document is in sRGB (specifically sRGB IEC61966.2.1). The image is being previewed correctly since Photoshop knows that the document has this embedded profile.
Although our Color Settings were set so that Adobe RGB (1998) was set for the preferred RGB working space, we were able to open this Dog_in_Bowl.tif document in sRGB without altering the data and we are able to preview the document correctly thanks to the Document Specific color handling. The RGB working space [Adobe RGB (1998)] plays no role here! If the document we open happens to have an embedded profile that matches our working space [in this case Adobe RGB (1998)], the document would simply open with no warning. Since Dog_in_Bowl.tif isn’t in Adobe RGB (1998), we get the Profile Mismatch warning. However, the Preserve policy allows us to open the document with a single click OK and keep the document in the original color space.
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