User manual

19 • Gray balance and color cast
ColorQuartet 5.0 Pro
177
Checking for and changing color cast
Color cast can be analyzed and corrected in the Gray Balance window or in the Highlight/
Shadow window.
Adjusting color cast manually
1 • To check whether an image has a color cast, open the feedback window and click on a part
of the image that should be white or neutral gray.
2 • To reduce, neutralize or introduce cast, drag the cursor to a different position on the color
wheel.
>>> Related topics:
G
ray balance • Overview
Cancelling color tool changes
Saving and retrieving color tool settings
Adjusting color cast automatically
In the Auto Setup window (accessed from the Highlight/Shadow window) there are sliders for
Shadow Cast Reduction and Highlight Cast Reduction.
• The sliders can be set for any level of cast reduction from None to Full.
• If the tone is neutral, the C (chroma) value in the densitometer
will be zero.
• For graphic feedback, open the Gray Balance window or Highlight/Shadow
window and see where on the color wheel the cursor lands:
Gray Balance: watch the small white circle.
Highlight/Shadow: watch the small red cross.
• If the point you clicked on in the feedback window is neutral, the cursor will
be in the center of the color wheel. The farther away it is from the center, the
more cast the image has. The position of the cursor also indicates which
color is dominant.
In the Gray Balance window, you can also neutralize the image by click-
ing on the Neutralize button.