Butteraugli

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Abstract
Author Asd-g
Version v1.1.0
Download Butteraugli-1.1.0.7z
Category Debug filter
License GPLv3
Discussion

Contents

Description

Butteraugli estimating filter for the psychovisual similarity of two images.

A quality metric for lossy image and video compression.

This is a port of the VapourSynth plugin butteraugli.

Google's Butteraugli is used.

Requirements


Syntax and Parameters

Butteraugli (clip clip1, clip clip2, float "hf_asymmetry", bool "heatmap", bool "linput")


clip   =
clip   =
Clips that are use for estimating the psychovisual similarity. They must be in planar RGB format (8-32bit).


float  hf_asymmetry = 1.0
Multiplier for penalizing new HF artifacts more than blurring away features. 1.0=neutral.
Must be greater than 0.0.
Default: 1.0.


bool  heatmap = true
True: A heatmap is returned containing differences between two input clips.
False: Returns clip2.


bool  linput = false
True: The input clips must have linear transfer functions.
False: The input clips are assumed in sRGB color space and internal conversion to linear transfer function is done.
Default: False.


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


Examples

# Return the difference between the clips with displayed all frame properties alongside with '_FrameButteraugli'
Butteraugli(clip1, clip2, hf_asymmetry=1.0, heatmap=true, linput=false)
propShow()


# Return clip2 with displayed the value of the frame property '_FrameButteraugli'.
Butteraugli(clip1, clip2, hf_asymmetry=1.0, heatmap=true, linput=false)
ScriptClip("""Subtitle(String(propGetFloat("_FrameButteraugli")))""")


Changelog

Version      Date            Changes
v1.1.0 2020/11/06 - Added support for 10..32-bit clips. - Added parameters 'hf_asymmetry' and 'linput'.
v1.0.2 2020/11/02 - Registered as MT_MULTI_INSTANCE. - Used faster butteraugli lib.
v1.0.0 2020/10/31 - Initial release


External Links

  • GitHub - Source code repository.




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