README.md

EqualizeHist

Histogram Equalization for Vapoursynth.

Usage

ehist.EqualizeHist(vnode clip)

Parameters:

• clip
  A clip to process. 8-16 bit integer only.

CLAHE

Contrast Limited Adaptive Histogram Equalization for Vapoursynth.
This filter uses OpenCV internally because I don't know how to do tiles in VS (please send help).

Usage

ehist.CLAHE(vnode clip[, float limit=7, int tile=3])

Parameters:

• clip
  A clip to process. 8-16 bit integer only.
• limit
  Threshold for contrast limiting.
  For the 16 bit clip to have the same result as the 8 bit clip you have to multiply the limit by 256.
• tile
  Tile size for histogram equalization.

Example

Luma 16 bit

EqualizeHist 16 bit

CLAHE(limit=15.0, tile=3) 16 bit