Colorreplace – Apple Shake 4 User Manual

Page 671

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Chapter 23

Color Correction

671

Add
Adds color to the input image. Blacks are modified when this is raised.

min
Sets the clipping for the function.

max
Sets the clipping for the function.

ColorReplace

The ColorReplace node allows you to isolate a color according to its hue, saturation, and
value, and then replace it with a different color. Other areas of the spectrum remain
unchanged. This is especially useful for spill suppression.

To pull a mask of the affected source color, enable affectAlpha in the ColorReplace
parameters. To better understand the parameters, you can attach the ColorReplace
node to a ColorWheel node to observe the effects graphically.

Parameters

This node displays the following controls in the Parameters tab:

affectAlpha
Toggles whether the alpha color is also adjusted by the color correction. If so, you can
then easily use this as a mask for other operations.

sourceColor
These color controls let you select the target color you want to change.

destinationColor
The color you want to use as the replacement for the color value selected as the
sourceColor.

hueRange
The range on the hue (from 0 to 1) that is affected. A range of .5 affects the entire hue
range.

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