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luminosity mask

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)...

Luminosity Masks

Tony Kuyper describes a great way to manage tones in Photoshop that he calls "Luminosity Masks." See http://goodlight.us/writing/luminositymasks/luminositymasks-1.html for his thorough description of how they work and what they can do. I have implemented and extended them in this Gimp plugin.

Installation:
Put gimp-luminosity-mask.py in your Gimp plugins directory. Usually this is ~/.gimp-2.x/plug-ins. Restart Gimp.

Usage:

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