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Luminosity Masks (patdavid)

Revisiting the concept of creating and using Luminosity Masks in GIMP. This script-fu will generate a full set of Light, Dark, and Midtone masks as channels for your image (based on the work of Tony Kuyper originally).

This is the automated script-fu version of the full tutorial that can be found here:
Getting Around in GIMP - Luminosity Masks Revisited

Once installed, the filter can be found at

Filters → Generic → Luminosity Masks (patdavid)...
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