This tool adjusts the Red, Green and Blue levels of an image.
On the tool's "Inputs" page you can set the viewer that the tool outputs to and the image that the tool will manipulate.
On the "Parameters" page you can set the following options:
RedLevelDetermines if the original image is manipulated or
whether the original image is copied before the tool is run. If selected the
image is copied before the tool is run.
None - Does not display output image
Image - Shows the image on the output viewer.
Overlay - Shows overlay.
All - Shows image in output window.