ExtractChannel
Extracts a single channel from src (coi is 0-based index)
InsertChannel
Inserts a single channel to dst (coi is 0-based index).
Lut
Performs a look-up table transform of an array.
Merge
Creates one multi-channel array or image out of several single-channel ones.
MixChannels
Copies specified channels from input arrays to the specified channels of output arrays.
Split
Divides a multi-channel array into several single-channel arrays.