DEPRECATED: Please use ExtractSubstack module.
Extracts a single channel from a stack and stores it as a new image in the workspace.
Input image: Multi-channel image to extract a channel from. This image is unaffected by the extraction process (i.e. its channel count doesn't decrease by 1).
Output image: The extracted channel will be stored in the workspace under this name.
Channel to extract (>= 1): Channel index to extract. Index numbering starts at 1 and must be specified as a single integer value.