User's Manual

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ADOBE PHOTOSHOP CS2
User Guide
To use the Apple Color Picker
(Mac OS only)
1 Do one of the following:
• (Photoshop) Choose Photoshop > Preferences > General.
• (ImageReady) Choose ImageReady > Preferences > General.
2 For Color Picker, do one of the following:
• (Photoshop) Choose Apple and click OK.
• (ImageReady) Choose System, and click OK.
For more information, see your Mac OS documentation.
To return to the Adobe Color Picker after using another color picker
1 Do one of the following:
• In Windows, choose Edit > Preferences > General.
• (Photoshop) In Mac OS, choose Photoshop > Preferences > General.
• (ImageReady) In Mac OS, choose ImageReady > Preferences > General.
2 Choose Adobe from the Color Picker menu, and click OK.
Using the color wheel
If you’re new to adjusting color components, it helps to keep a diagram of the standard color wheel on hand when
youworkoncolor balance. Youcan usethe colorwheel to predicthow achangeinone colorcomponent affectsother
colors and also how changes translate between RGB and CMYK color models.
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R
B
90270
Y
G
M
C
180
Color wheel
R. Red Y. Ye llo w G. Green C. Cyan B. Blue M. Magenta
For example, you can decrease the amount of any color in an image by increasing the amount of its opposite on the
color wheel—and vice versa. Colors that lie opposite each other on the standard color wheel are known as comple-
mentary colors. Similarly, you can increase and decrease a color by adjusting the two adjacent colors on the wheel,
or even by adjusting the two colors adjacent to its opposite.