Inverse Node

The Inverse node enables you to invert the color values in an image, effectively creating a negative of the image. The Inverse node performs the following computation, where Z is the maximum color value and V is the color value of a pixel:

V = Z - V

Inverse Parameter Tab

Channel Mask

The Channel Mask parameter enables you to inhibit the modification of any channel by deselecting the Red, Green, Blue, Alpha, or Other channel icons.

Control Image Parameters

The Control Action and Control Channel menus enable you to specify how an optional control image input will govern the node operation, as explained in "Using Control Images with Filter Nodes ."




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