Butteraugli

A quality metric for lossy image and video compression.

This is a port of the AviSynthPlus plugin butteraugli.

libjxl's Butteraugli is used.

The psychovisual similarity of the clips will be stored as frame property '_FrameButteraugli' in the output clip. Larger values indicate to bigger difference.

Usage

core.julek.Butteraugli(vnode reference, vnode distorted [, bool distmap=False, float intensity_target=80.0, bool linput=False])

Parameters:

• reference, distorted
  Clips that are used for estimating the psychovisual similarity.
  They must be in RGB 8/16/32-bit and must have same dimensions.

• distmap
  Whether to return heatmap instead of distorted clip.
  Default: False.

• intensity_target
  Viewing conditions screen nits.
  Default: 80.0.

• linput
  True: The input clips must have linear transfer functions.
  False: The input clips are assumed in sRGB color space and internally converted to linear transfer.
  Default: False.