DeNoise

Abstract
Author	V.C.Mohan
Version	17 Oct 2017
Download	modPlus.7z
Category	External filters
License	GPLv3
Discussion	announced DeNoise plugin, modPlus

Description

This is an adaptive local noise reduction filter. It uses global variance of the noise, local mean and local variance in a moving grid of specified size. It tries to preserve edges as closely as possible. Full Description

Requirements

• AviSynth+ r2347 or later

Syntax and Parameters

minvar (clip, int "sf", int "xgrid", int "ygrid", int "lx", int "ty", int "wd", int "ht", bool "uv", bool "a", bool "show")

clip   =

Input clip.

int  sf = 0

Frame number in which specified window is located.

int  xgrid = 5

Number of pixels along x axis in moving grid.

• Between 3 to 9

int  ygrid = xgrid

Number of pixels along y axis in moving grid.

• Between 3 to 9

int  lx = None. Must be specified

Window left x computing global variance.

• Within clip
• Less than rx

int  ty = None. Must be specified

Window top y for computing global variance.

• Within clip
• Less than by

int  wd = None. Must be specified

Window width for computing global variance.

• lx + wd be within frame

int  ht = None. Must be specified

Window height for computing global variance.

• ty + ht be within frame

bool  uv = true

Whether U and V of YUY2 and YUV formats to be processed.

• true = uv process
• false = do not process uv

bool  a = false

Whether A value of RGB formats to be processed.

• true = yes
• false = no

bool  show = false

Whether variance values are to be displayed as an error message.

• true = yes
• false = no

Examples

## This is some example code to remove noise from an image.
imagereader("C:\avi_plugins\varianslim\theoin.jpg", end = 10)
converttoyv16()
minvar(sf = 35,lx=220,wd=245,ty=322,ht=150, uv = true)

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