Dither — high-bit-depth tools for AviSynth
This package offers a set of tools to manipulate Stacked Hacked high-bit-depth (16 bits per plane) video clips.
The most prominent features are color banding artifact removal, dithering to 8 bits, colorspace conversions and resizing.
Additionally, some existing filters (dfttest, MDegrain from MVTools, etc) have been modified to handle 16-bit clips. See High bit-depth Support with Avisynth for more information.
Authors: Firesledge (aka Cretindesalpes)
Wiki: http://avisynth.nl/index.php/Dither_tools