The Channel Replace tool lets you remap
the red, green, blue, or alpha channel values in one image by those
of another image.
To remap the channel values of one image
to a different image:
- Drag the Replace tool from the Channel
folder in Tools tab to the dependency graph in the Schematic view
and connect the images to the tool node (one image for input A and
one image for input B).
- In the Tool UI, click the channel you
want to replace and select values; A or B for Red, Green and Blue
or A, B, or None for the Alpha channel.