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Channel Extract Tool
The Channel Extract tool lets you to remove a channel from an image. You
can remove the red, green, blue, or alpha channel.
To extract a channel from an image:
1 Drag the Extract tool from the Channel folder on the Tools tab onto the
dependency graph in the Schematic view.
2 Click the channel list button and select the channel you want to extract
from the image.
NOTE The Channel Extract tool has a masking input—see Pixel Masking on page
560.
Out of Range Tool
The Out of Range tool uses pseudo colors to display pixels above or below
user specified threshold. It is also capable of outputting a mask of the
out-of-range pixels or its inverse, so that corrective action can be taken by
other tools downstream. The Out of Range tool is in the Channel folder in
the Tools tab.
The Out of Range tool has the following parameters:
362 | Chapter 16 2D Compositing