User Guide

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ADOBE PHOTOSHOP 5.0
User Guide
You can also quickly identify all out-of-gamut
colors in an RGB image by using the Gamut
Warning command. This command highlights all
pixels that are out of gamut in the image.
To turn on and off the highlighting of out-of-gamut
colors:
Choose View > Gamut Warning.
To change the gamut warning color:
1 Choose File > Preferences > Transparency &
Gamut.
2 Under Gamut Warning, click the color box to
display the color picker; then choose a new
warning color.
3 Enter a value in the Opacity text box. Values can
range from 0 to 100%. Use this setting to reveal
more or less of the underlying image through the
warning color. Then click OK.
For a color illustration of the gamut
warning color, see figure 6-1 on page 225.
Note: Because the gamut warning is generated using
the current CMYK settings, be sure to fill in the
CMYK Setup dialog box properly before following
these out-of-gamut procedures. (See “Calibrating
the screen image to the proof” on page 92 and
“Adjusting separation options” on page 89.)
Step 1: Calibrate your system
The first, critical step before making a color or
tonal adjustment to an image is to make sure that
you have calibrated your system as described in
Chapter 5, “Reproducing Color Accurately.”
Otherwise, the image’s color on your screen can
look vastly different from the same image when
printed or when seen on another monitor.
If you are a color expert, you could print a full-
color proof of each image whenever any element in
your environment changed (such as lighting) or
whenever you adjusted the image’s color and tone.
However, by calibrating you ensure that colors are
reproduced more accurately on your system,
saving you time and expense.
STEPS IN MAKING COLOR AND TONAL
ADJUSTMENTS
1 Calibrate (page 111).
2 Check the scan quality (page 112).
3 Set the highlights and shadows
(page 114).
4 Adjust the midtones (page 119).
5 Adjust the color balance and fine-tune
(page 122).
6 Apply Unsharp Mask (page 128).