Color-Reduction

? Convert images to 15/16-bit RGB color with dithering

off the charts color quantization ?

Comprehensive Java Graphical Execution Framework

Go library for color quantization and dithering

KGy SOFT Drawing is a library for advanced image, icon and graphics handling.

Debugger visualizers and image editor apps built on KGy SOFT Drawing Libraries

A pretty way to compress images

DotCam is a simple web–app for realtime video manipulation using dithering with customisable dot patterns.

A pure Java library for GIF89a encoding

Dithering and Median cut algorithms on digital image