DeNoise

Latest revision as of 03:44, 10 June 2020

Abstract
Author	V. C. Mohan
Version	22 Nov 2015
Download	DeNoise_2_6.zip
Category	External filters
License	GPLv3
Discussion	Doom9 Forum

[edit] 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.

Official documentation: http://www.avisynth.nl/users/vcmohan/DeNoise/DeNoise.html
For AviSynth+ see modPlus, includes high bit depth colorspace support and 64-bit.

[edit] Requirements

[x86]: AviSynth+ or AviSynth 2.6
Supported color formats: RGB24, RGB32, YUY2, Y8, YV12, YV16, YV24

[edit] Syntax and Parameters

DeNoise (clip, int "sf", int "ef", int "xgrid", int "ygrid", bool "getvar", bool "clip", int "lx", int "ty", int "rx", int "by", int "elx", int "ety", int "erx", int "eby", int "var", int "evar", bool "uv", bool "usey", bool "show")

clip =

Input clip.

int sf = 0

Starting frame number to process.

int ef =

End frame number to process, default is the last frame.

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

bool getvar = true

Is Global variance to be computed?

True for yes, false for is specified.

bool clip = true

Is variance valid for all clip or only frame?

True for yes, false for for frame.

int lx = None. Must be specified

Window left x at start frame for computing global variance.

Within clip, less than rx.

int ty = None. Must be specified

Window top y at start frame for computing global variance.

Within clip, less than by.

int rx = None. Must be specified

Window right x at start frame for computing global variance.

Within clip, more than lx.

int by = None. Must be specified

Window bottom y at start frame for computing global varianc.

Within clip, more than ty.

int elx = None. Must be specified

Window left x at end frame for computing global variance.

Within clip, less than erx.

int ety = None. Must be specified

Window top y at end frame for computing global variance.

Within clip, less than eby.

int erx = None. Must be specified

Window right x at end frame for computing global variance.

Within clip, more than elx.

int eby = None. Must be specified

Window bottom y at end frame for computing global variance.

Within clip, more than ety.

int var = 100

Variance specified at start frame.

Range: greater than 0

int evar = var

Variance at end frame.

Range: greater than 0

bool uv = true

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

true = uv process
false = do not process uv

bool usey = false

Whether variance of Y to be used for u and v also.

true = yes
false = no

bool show = false

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

true = yes
false = no

[edit] Examples

DeNoise with default values:

AviSource("blah.avi")
DeNoise()

Process all frames (sf and ef parameters are omitted):

DeNoise(getvar=false, var=120, evar=160, xgrid=5, ygrid=7)

Process only frames 35-55:

DeNoise(sf=35, ef=55, clip=false, lx=220, rx=245, ty=322, by=402)

Back to External Filters ←

@@ Line 1: / Line 1: @@
+{{FilterCat|External_filters|Plugins|Denoisers}}
-{{FilterCat4|External_filters|Plugins|<!-- category -->TODO|<!-- category -->TODO}}
 {{Filter3
-|1=<!-- author -->[http://www.avisynth.nl/users/vcmohan/ V.C.Mohan]
+|1={{Author/vcmohan}}
-|2=<!-- version -->17 Oct 2017
+|2=22 Nov 2015
-|3= [http://www.avisynth.nl/users/vcmohan/modPlus/modPlus.7z modPlus.7z]
+|3= [http://www.avisynth.nl/users/vcmohan/DeNoise/DeNoise_2_6.zip DeNoise_2_6.zip]
-|4=<!-- catagory --> External filters
+|4=External filters
 |5=<!-- license -->[https://www.gnu.org/licenses/gpl-3.0.en.html GPLv3]
-|6=<!-- discussion URL -->[https://forum.doom9.org/showthread.php?p=712586#post712586 announced DeNoise plugin], [https://forum.doom9.org/showthread.php?t=174162 modPlus]}}
+|6=[https://forum.doom9.org/showthread.php?p=712586#post712586 Doom9 Forum]}}
 <br>
 == Description ==
-<!-- a one-sentence 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.
-Using Variance of a given window, minimizes noise and tries to preserve edges and a full description is at  [http://www.avisynth.nl/users/vcmohan/modPlus/minvar.html click me].
-<br>
+*Official documentation: http://www.avisynth.nl/users/vcmohan/DeNoise/DeNoise.html
+*For AviSynth+ see [[modPlus]], includes high bit depth colorspace support and 64-bit.
 <br>
 == Requirements ==
-* AviSynth+ r2347 or greater
+* [x86]: [[AviSynth+]] or [https://sourceforge.net/projects/avisynth2/ AviSynth 2.6]
-* <!-- source video: progressive
+* Supported color formats: [[RGB24]], [[RGB32]], [[YUY2]], [[Y8]], [[YV12]], [[YV16]], [[YV24]]
-* <!-- color formats -->Supported color formats: [[RGB24]], [[RGB32]], [[YUY2]], [[YV12]], [[YV16]], [[YV24]], [[YV411]], [[Y8]]
 <br>
 == [[Script variables|Syntax and Parameters]] ==
-:{{Template:FuncDef|<!-- function name -->minvar (''clip'', ''<!-- type -->int'' "<!-- name -->sf", ''<!-- type -->int'' "<!-- name -->xgrid", ''<!-- type -->int'' "<!-- name -->ygrid", ''<!-- type -->int'' "<!-- name -->lx", ''<!-- type -->int'' "<!-- name -->ty",''<!-- type -->int'' "<!-- name -->wd", ''<!-- type -->int'' "<!-- name -->ht", ''<!-- type -->bool'' "<!-- name -->uv", ''<!-- type -->bool'' "<!-- name -->a", ''<!-- type -->bool'' "<!-- name -->show")}}
+:{{Template:FuncDef| DeNoise (clip, int "sf", int "ef", int "xgrid", int "ygrid", bool "getvar", bool "clip", int "lx", int "ty", int "rx", int "by", int "elx", int "ety", int "erx", int "eby", int "var", int "evar", bool "uv", bool "usey", bool "show")}}
 <br>
 ::{{Par2| |clip| }}
-:::Input clip.
+::: Input clip.
 <br>
-::{{Par2|<!-- par 1 type -->int|<!-- par 1 name -->sf|<!-- par 1 default value -->0}}
+::{{Par2|sf|int|0}}
-:::<!-- par 1 description -->process starts on frame .
+:::Starting frame number to process.
 <br>
-::{{Par2|<!-- par 2 type -->int|<!-- par 2 name -->ef|<!-- par 2 default value -->last frame}}
+::{{Par2|ef|int| }}
-:::<!-- par 2 description -->process ends on frame .
+:::End frame number to process, default is the last frame.
 <br>
-::{{Par2|<!-- par 3 type -->int|<!-- par 3 name -->xgrid|<!-- par 3 default value -->5}}
+::{{Par2|xgrid|int|5}}
-:::<!-- par 3 description -->local grid size in x direction .
+::: Number of pixels along x axis in moving grid.
+:::* Between 3 to 9
 <br>
-::{{Par2|<!-- par 4 type -->int|<!-- par 4 name -->ygrid|<!-- par 4 default value -->xgrid}}
+::{{Par2|ygrid|int|xgrid}}
-:::<!-- par 4 description -->local grid size along y.
+::: Number of pixels along y axis in moving grid.
+:::* Between 3 to 9
 <br>
-::{{Par2|<!-- par 5 type -->bool|<!-- par 5 name -->getvar|<!-- par 5 default value -->true}}
+::{{Par2|getvar|bool|true}}
-:::<!-- par 5 description -->Is variance to be determined from a window?
+::: Is Global variance to be computed?
+:::* True for yes, false for is specified.
 <br>
-::{{Par2|<!-- par 6 type -->bool|<!-- par 6 name -->clip|<!-- par 6 default value -->a}}
+::{{Par2|clip|bool|true}}
-:::<!-- par 6 description -->Is variance from first frame window is valid for entire clip? true. If false  to be determined frame by frame.
+::: Is variance valid for all clip or only frame?
+:::* True for yes, false for for frame.
 <br>
-::{{Par2|<!-- par 7 type -->int|<!-- par 7 name -->lx|<!-- par 7 default value -->must be specified if getvar is true}}
+::{{Par2|lx|int|None. Must be specified}}
-:::<!-- par 7 description -->left x coord of window on 1st frame.
+::: Window left x at start frame for computing global variance.
+:::* Within clip, less than <code>rx</code>.
 <br>
-::{{Par2|<!-- par 8 type -->int|<!-- par 8 name -->ty|<!-- par 8 default value -->must be specified if getvar is true}}
+::{{Par2|ty|int|None. Must be specified}}
-:::<!-- par 8 description -->top y coordinate of window on 1st frame.
+::: Window top y at start frame for computing global variance.
+:::* Within clip, less than <code>by</code>.
 <br>
-::{{Par2|<!-- par 9 type -->int|<!-- par 9 name -->rx|<!-- par 7 default value -->must be specified if getvar is true}}
+::{{Par2|rx|int|None. Must be specified}}
-:::<!-- par 9 description -->right x coord of window on 1st frame.
+::: Window right x at start frame for computing global variance.
+:::* Within clip, more than <code>lx</code>.
 <br>
-::{{Par2|<!-- par 10 type -->int|<!-- par 10 name -->by|<!-- par 10 default value -->must be specified if getvar is true}}
+::{{Par2|by|int|None. Must be specified}}
-:::<!-- par 10 description -->bottom y coordinate of window on 1st frame.
+::: Window bottom y at start frame for computing global varianc.
+:::* Within clip, more than <code>ty</code>.
+::{{Par2|elx|int|None. Must be specified}}
+::: Window left x at end frame for computing global variance.
+:::* Within clip, less than <code>erx</code>.
 <br>
-::{{Par2|<!-- par 11 type -->int|<!-- par 11 name -->elx|<!-- par 11 default value -->lx}}
+::{{Par2|ety|int|None. Must be specified}}
-:::<!-- par 11 description -->left x coord of window on last frame.
+::: Window top y at end frame for computing global variance.
+:::* Within clip, less than <code>eby</code>.
 <br>
-::{{Par2|<!-- par 12 type -->int|<!-- par 12 name -->ety|<!-- par 12 default value -->ty}}
+::{{Par2|erx|int|None. Must be specified}}
-:::<!-- par 12 description -->top y coordinate of window on last frame.
+::: Window right x at end frame for computing global variance.
+:::* Within clip, more than <code>elx</code>.
 <br>
-::{{Par2|<!-- par 13 type -->int|<!-- par 13 name -->erx|<!-- par 13 default value -->rx}}
+::{{Par2|eby|int|None. Must be specified}}
-:::<!-- par 13 description -->right x coord of window on last frame.
+::: Window bottom y at end frame for computing global variance.
+:::* Within clip, more than <code>ety</code>.
 <br>
-::{{Par2|<!-- par 14 type -->int|<!-- par 14 name -->eby|<!-- par 14 default value -->by}}
+::{{Par2|var|int|100}}
-:::<!-- par 14 description -->bottom y coordinate of window on last frame.
+:::Variance specified at start frame.
+:::*Range: greater than 0
 <br>
-::{{Par2|<!-- par 15 type -->int|<!-- par 15 name -->var|<!-- par 15 default value -->100}}
+::{{Par2|evar|int|<code>var</code>}}
-:::<!-- par 15 description -->value to be used as global variance. Will be used if getvar is false.
+:::Variance at end frame.
+:::*Range: greater than 0
 <br>
-::{{Par2|<!-- par 16 type -->int|<!-- par 16 name -->evar|<!-- par 16 default value -->var}}
+::{{Par2|uv|bool|true}}
-:::<!-- par 10 description -->variance on last frame. In between linear interpolation.
+::: Whether U and V of YUY2 and YUV formats to be processed.
+:::* true = uv process
+:::* false = do not process uv
 <br>
-::{{Par2|<!-- par 17 type -->bool|<!-- par 17 name -->uv|<!-- par 17 default value -->true}}
+::{{Par2|usey|bool|false}}
-:::<!-- par 17 description -->Whether u v planes to be processed(for planar and yuy2 input)?.
+::: Whether variance of Y to be used for u and v also.
-<br>
+:::* true = yes
-::{{Par2|<!-- par 18 type -->bool|<!-- par 18 name -->usey|<!-- par 18 default value -->false}}
+:::* false = no
-:::<!-- par 18 description -->can variance of y plane can be used for u v planes?
-<br>
-::{{Par2|<!-- par 19 type -->bool|<!-- par 19 name -->show|<!-- par 19 default value -->false}}
-:::<!-- par 19 description -->if true an error message showing variance values determined will appear)
-<br>
 <br>
+::{{Par2|show|bool|false}}
+::: Whether variance values are to be displayed as an error message.
+:::* true = yes
+:::* false = no
 <br>
 == Examples ==
 <!-- example code block: 1st char in each line = space -->
- ## This is some example code to remove noise from an image.
+*DeNoise with default values:
-  imagereader("C:\avi_plugins\varianslim\theoin.jpg", end = 10)
+  AviSource("blah.avi")
-  converttoyv16()
+  DeNoise()
-  minvar(clip=false,lx=220,rx=245,ty=322,by=402, uv = true, show = false)
+*Process all frames (sf and ef parameters are omitted):
+  DeNoise(getvar=false, var=120, evar=160, xgrid=5, ygrid=7)
+*Process only frames 35-55:
+ DeNoise(sf=35, ef=55, clip=false, lx=220, rx=245, ty=322, by=402)
 <br>
 <br>
 -----------------------------------------------
-'''Back to [[External_filters|External Filters]] &larr;'''
+'''Back to [[External_filters#Denoisers|External Filters]] &larr;'''

DeNoise

Latest revision as of 03:44, 10 June 2020

Contents

[edit] Description

[edit] Requirements

[edit] Syntax and Parameters

[edit] Examples

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