MosquitoNR
From Avisynth wiki
(Difference between revisions)
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|{{Author/b_inary}} | |{{Author/b_inary}} | ||
|v0.10 | |v0.10 | ||
| − | |[http://web.archive.org/web/20131028144351/http://www.geocities.jp/w_bean17/files/mosquito_nr_avisynth.zip | + | |[http://web.archive.org/web/20131028144351/http://www.geocities.jp/w_bean17/files/mosquito_nr_avisynth.zip mosquito_nr_avisynth.zip] |
|Deringing & Mosquito Noise | |Deringing & Mosquito Noise | ||
|[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2] | |[http://www.gnu.org/licenses/gpl-2.0.txt GPLv2] | ||
| Line 25: | Line 25: | ||
<br> | <br> | ||
| − | == Syntax and Parameters == | + | == [[Script variables|Syntax and Parameters]] == |
:{{Template:FuncDef|MosquitoNR (''clip'', ''int'' "strength", ''int'' "restore", ''int'' "radius", ''int'' "threads")}} | :{{Template:FuncDef|MosquitoNR (''clip'', ''int'' "strength", ''int'' "restore", ''int'' "radius", ''int'' "threads")}} | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par2|strength|int|16}} |
:::Range: 0 - 32 | :::Range: 0 - 32 | ||
::::Sets the strength of the blur. | ::::Sets the strength of the blur. | ||
:::::Setting this value higher brings stronger noise reduction effect, but side effect will also become stronger. | :::::Setting this value higher brings stronger noise reduction effect, but side effect will also become stronger. | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par2|restore|int|128}} |
:::Range: 0 - 128 | :::Range: 0 - 128 | ||
::::Sets the rate of restoring. | ::::Sets the rate of restoring. | ||
| Line 39: | Line 39: | ||
:::::If set to 128, low frequency components of the blurred image is completely replaced with those of the original image, and runs slightly faster. | :::::If set to 128, low frequency components of the blurred image is completely replaced with those of the original image, and runs slightly faster. | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par2|radius|int|2}} |
:::Range: 1 - 2 | :::Range: 1 - 2 | ||
::::Sets the radius of the blur. | ::::Sets the radius of the blur. | ||
| − | :::: | + | :::::1 is faster, but will have insufficient effect in some cases. |
<br> | <br> | ||
| − | ::{{ | + | ::{{Par2|threads|int|0}} |
:::Range: 0 - 32 | :::Range: 0 - 32 | ||
::::Controls how many threads are used. | ::::Controls how many threads are used. | ||
| Line 51: | Line 51: | ||
<br> | <br> | ||
== Examples == | == Examples == | ||
| − | MosquitoNR with default settings | + | MosquitoNR with default settings: |
[[AviSource]]("Blah.avi") | [[AviSource]]("Blah.avi") | ||
MosquitoNR(strength=16, restore=128, radius=2, threads=0) | MosquitoNR(strength=16, restore=128, radius=2, threads=0) | ||
| Line 64: | Line 64: | ||
<br> | <br> | ||
== Changelog == | == Changelog == | ||
| − | + | Version Date Changes<br> | |
| − | + | v0.10 2013/03/14 - fixed a crash with AviSynth MT | |
| − | + | - added support for YV16, YV24, Y411, Y8 | |
| − | + | - some speed optimizations | |
| − | + | - added English documentation<br> | |
| − | + | v120210 2012/02/10 - initial release | |
| − | + | ||
<br> | <br> | ||
== Acknowledgments == | == Acknowledgments == | ||
Revision as of 20:55, 4 March 2014
| Abstract | |
|---|---|
| Author | b_inary |
| Version | v0.10 |
| Download | mosquito_nr_avisynth.zip |
| Category | Deringing & Mosquito Noise |
| License | GPLv2 |
Contents |
Description
- MosquitoNR is a noise reduction filter designed for mosquito noise, which is often caused by lossy compression such as MPEG.
- This filter works as follows:
- 1. Compute low frequency components of the image.
- 2. Apply direction-aware blur (smoothing). This blur effectively reduces compression artifacts, but also breaks detail.
- 3. Restore the low frequency components to the blurred image.
- MosquitoNR processes luma only, to correctly process chroma take a look at the example below.
Requirements
- - AviSynth 2.5.8 or later
- - Progressive input only
- - Supported color formats: YUY2, YV12, YV16, YV24, YV411, Y8
- - CPU with SSE2 support
Syntax and Parameters
- MosquitoNR (clip, int "strength", int "restore", int "radius", int "threads")
- int strength = 16
- Range: 0 - 32
- Sets the strength of the blur.
- Setting this value higher brings stronger noise reduction effect, but side effect will also become stronger.
- Sets the strength of the blur.
- Range: 0 - 32
- int strength = 16
- int restore = 128
- Range: 0 - 128
- Sets the rate of restoring.
- If set to 0, no restoring is performed.
- If set to 128, low frequency components of the blurred image is completely replaced with those of the original image, and runs slightly faster.
- Sets the rate of restoring.
- Range: 0 - 128
- int restore = 128
- int radius = 2
- Range: 1 - 2
- Sets the radius of the blur.
- 1 is faster, but will have insufficient effect in some cases.
- Sets the radius of the blur.
- Range: 1 - 2
- int radius = 2
- int threads = 0
- Range: 0 - 32
- Controls how many threads are used.
- By default, threads is set equal to automatically detected number of processors.
- Since this filter needs a lot of memory access, thread efficiency is not very good. Setting this value lower might improve overall processing speed.
- Controls how many threads are used.
- Range: 0 - 32
- int threads = 0
Examples
MosquitoNR with default settings:
AviSource("Blah.avi") MosquitoNR(strength=16, restore=128, radius=2, threads=0)
MosquitoNR processes only luma.
If you want to process chroma too, you can write a script like the following, but there might be no noticeable change.
AviSource("Blah.avi") MosquitoNR() u = UtoY().MosquitoNR() # In AviSynth 2.6, UtoY8() may be faster v = VtoY().MosquitoNR() YtoUV(u, v, last)
Changelog
Version Date Changes
v0.10 2013/03/14 - fixed a crash with AviSynth MT - added support for YV16, YV24, Y411, Y8 - some speed optimizations - added English documentation
v120210 2012/02/10 - initial release
Acknowledgments
This filter is a combination of flash3kyuu's AviUtl plugin "smoothing filter" and nilpo's AviUtl plugin "low frequency components protection filter".
This combination was proposed by POP@4bit. I thank all of them very much.
- flash3kyuu's web page (Japanese): http://www.geocities.jp/flash3kyuu/
- nilpo's web page (Japanese): http://nilposoft.info/aviutl-plugin/
- POP@4bit's web page (Japanese): http://pop.4-bit.jp/?p=3362
Links
- Doom9 Forum - MosquitoNR discussion.
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