HistogramAdjust

Abstract
Author	V.C.Mohan
Version	17 Oct 2017
Download	modPlus.7z
Category	External filters
License	GPLv2
Discussion	HistogramAdjust plugin

Description

This function, formerly named HistogramAdjust but now named TweakHist, adjusts the histogram of a frame by either equalizing it or by matching with histogram of another image, or with given histogram table of values. Full Description

Requirements

• AviSynth+ r2347 or greater
• Source video: Progressive

Syntax and Parameters

TweakHist(clip, int type, clip mclip, int mf, int limit, int rgb )

clip   =

Input clip.

  int =

Luma value % of maximum.

  clip =

% age of population or cumulative population at this luma value

type  int = 1

Type of process

mclip  clip = dummy clip

Clip in which image for matching is available.

0  mf =

Frame number on clip for matching.

limit  int = 100

Limit on % of change in value from original for tweaking allowed.

rgb  int = 1

Percentage of deviation from original value of luma to be allowed.

Examples

TweakHist() 
TweakHist(c,type=2,mclip=mm,mf=26)
TweakHist(c,15,2, 30,12, 50, 33, 90, 12,150,35,200,10, type=3,limit=50)
TweakHist(20,1,150,100,255,110, type=4,limit = 70) 

RGB input. Repeated for each color

TweakHist(limit = 70,rgb = 0)
TweakHist(limit = 70,rgb = 1)
TweakHist(limit = 50, rgb = 2)

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