Allows for reducing the color bit-depth of the R/G/B channels source images (RGB-888/RGBA-8888) to between 1-8 bits. The channel bit-depths can be locked together or modified separately.
For example it can reduce an RGB-888 image to bit-depths used by old game consoles such as the Game Boy Color(BGR-555), Game Gear(BGR-444), or Sega Master System(BGR-222).
The functionality is similar to the built-in Colors -> Dither
plugin except that it ensures alignment of color reductions to be within scaled bit-depth boundaries instead of arbitrary ranges.
The plugin menu location is: Colors -> Reduce Color Bit-Depth...
At least compatible with some versions of GIMP 2.10 on Linux and Windows.
Pre-built binaries can be downloaded from the Releases section.
Copy the plugin file to the relevant location below.
Plug-in folder locations:
- Linux:
~/.config/GIMP/2.10/plug-ins
- Windows:
C:\Program Files\GIMP 2\lib\gimp\2.0\plug-ins
Screenshot: