components.colourspace.extractcomps
- class ExtractComps(config={}, **kwds)[source]
Bases:
Transformer
Extract colour components.
Extract one or more components from a multi-component (RGB, YCrCb, etc.) input. The output components are specified by the config items
start
andstop
. As in a Pythonslice
,stop
should be one more than the last component required.Note that this operation is just as easily done with an
Arithmetic
component:extract_R = Arithmetic(func='data[:,:,0:1]') extract_G = Arithmetic(func='data[:,:,1:2]') extract_B = Arithmetic(func='data[:,:,2:3]')
Comments or questions? Please email jim@jim-easterbrook.me.uk.