
Copyright (C) 1999 Winston Chang
Copyright (C) 2010 Johannes Hanika

                                Michael Munzert
                                elsamuko


http://registry.gimp.org/node/28232

https://sites.google.com/site/elsamuko/gimp/calculate-saturation



This plugin calculates the saturation from a picture with four different saturation algorithms:
1. (max-min)
2. (max-min) / sum
3. like HSV: (max-min) / max
4. like HSL: (max-min) / (max+min)

The resulting b/w image can be used as layer mask to filter saturation.


You'll find it then under Colors->Components->Calc Saturation.


For all scripts together, go here:
http://sites.google.com/site/elsamuko/gimp



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Plug-in : Colors > Components > Calc Saturation
Script-Fu : Colors > Naturalize












