User manual

28 • Here’s How! A QuickGuide for ColorQuartet

ColorQuartet 5.0 Pro

252

To reduce or remove color cast in an image

In the color reproduction process, images are composed of cyan, magenta and yellow elements

(for printing) or red, green and blue elements (for a computer screen or certain other pro-

cesses). When the three colors are properly balanced (known as the gray balance), neutral grays

and whites will have equal amounts of all three colors and will appear neutral. If one of the three

colors is dominant over the others, however, the image is said to have a color cast.

ColotQuartet gives you several tools for correcting color cast and achieving a neutral gray bal-

ance.

To learn more about gray balance and color cast – see page 175.

For general information about working with the color tools – see page 242.

Adjusting color cast in the highlights and shadows automatically

1 • Open the Highlight/Shadow window.

2 • Click on Auto Setup to open the Auto Setup window.

3 • Set the Shadow Cast Reduction and Highlight Cast Reduction sliders to the desired levels.

4 • Click on OK to return to the Highlight/Shadow window.

Adjusting color cast in the highlights and shadows manually

1 • Open the Highlight/Shadow window and check the location of the green/red areas on the

color wheels, If the image is neutral, each red area will be in the middle of its color wheel.

2 • To neutralize, drag the red area(s) to the center of the color wheel(s).

• Full means that the gray balance will be fully neutralized.

• None means that the gray balance will not be changed.

• ColorQuartet will now automatically adjust the gray balance of the lightest

and darkest parts of the image when you apply the Highlight/Shadow tool.

• The Auto Setup setting is remembered until you change it.

• REMEMBER: If you undo the highlight and shadow settings for an image, you

will also be undoing any automatic cast reduction.

You can also adjust the gray balance to a different, non-neutral setting

by dragging the red area(s) to any other desired position on the color

wheel.