Gamut Warning

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Figure 3-33:

Image displayed with Gamut warning active. is set up as the warning color and "U.S. Web Coated (SWOP) V2" as the destination profile.

Figure 3-33:

Image displayed with Gamut warning active. is set up as the warning color and "U.S. Web Coated (SWOP) V2" as the destination profile.

If you don't use a custom proof setup in Photoshop and activate Gamut Warning or Proof Colors, your Working Spaces CMYK setting is used as default ( figure 3-24, page 76).

You can toggle Gamut Warning on and off using either Q-K-0/or the View menu.

Gamut Warning helps you determine which colors in your image will not be reproduced accurately and will have to be remapped. This usually involves mapping highly saturated colors to less saturated ones. It may also help to modify these colors to fit better into the destination color space (usually the printer's gamut). Decreasing saturation is more accurate if done manually than if you use automatic gamut mapping, which is controlled by the selected rendering intent (section 3.3, page 68).

Even if Gamut Warning is not active, the Color Picker will warn you if you select a color that is out of gamut for your target device by displaying a triangle ¿li icon beside the selected color (figure 3-35, ®). If you then click in the field ®, the selected color will be replaced by a color that is as close as possible to the original, but that still fits into the destination color space.

Figure 3-34: Gamut Warning color selection in Photoshop

Setect gamut warning color

Cancel

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Figure 3-35: The Gamut Warning ® in Color Picker

In Photoshop CS4/CS5, you can activate soft proofing and Gamut Warning for the preview image in the print dialog (figure 11-12, page 438).*If you let Photoshop handle color management, it will apply the rendering intent selected in the print dialog. The printer profile selected in the print dialog will be used as the output profile.

> The higher the color temperature of light, the bluer it is. Conversely, the lower its color temperature, the redder it will be.

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