STPresso

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== Description ==
 
== Description ==
The goal of STPresso is to "dampen the grain just a little, to keep the original look, and make it fast". In other words it makes a video more compressible without losing detail and original grain structure. <br>
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The goal of STPresso (<u>'''S'''</u>patio<u>-'''T'''</u>emporal <u>'''Press'''</u>d<u>'''o'''</u>wn) is to "dampen the grain just a little, to keep the original look, and make it fast". In other words it makes a video more compressible without losing detail and original grain structure. <br>
STPresso is recommended for 720p content because "the spatial part might be a bit too narrow for 1080p encoding (since it's only a 3x3 kernel)". Finally, STPresso stands for <u>'''S'''</u>patio<u>-'''T'''</u>emporal <u>'''Press'''</u>d<u>'''o'''</u>wn.
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STPresso is recommended for content up to 720p because "the spatial part might be a bit too narrow for 1080p encoding (since it's only a 3x3 kernel)".
 
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== Requirements ==
 
== Requirements ==
 
* AviSynth 2.5.8 or later
 
* AviSynth 2.5.8 or later
 
* [[FAQ_different_types_content#How_do_I_recognize_progressive.2C_interlaced.2C_telecined.2C_hybrid_and_blended_content.3F|Progressive]] input only  
 
* [[FAQ_different_types_content#How_do_I_recognize_progressive.2C_interlaced.2C_telecined.2C_hybrid_and_blended_content.3F|Progressive]] input only  
 
* Supported color formats: [[YV12]]
 
* Supported color formats: [[YV12]]
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==== Required Filters: ====
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=== Required Plugins ===
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Latest versions of the following filters are recommended unless stated otherwise.<br>
 
*[[FluxSmooth]]
 
*[[FluxSmooth]]
*[[MaskTools2]] 2.0a48+
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*[[MaskTools2]]
*[[RemoveGrain v1.0b/RemoveGrain|RemoveGrain]] - part of the [[RemoveGrain v1.0b]] package.
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*<strike>RemoveGrain - part of the [[RemoveGrain v1.0b]] package.</strike>
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*[[RgTools]] - recommended drop-in replacement for RemoveGrain!
 
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== [[Script variables|Syntax and Parameters]] ==
 
== [[Script variables|Syntax and Parameters]] ==
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== External Links ==
 
== External Links ==
 
- [http://forum.doom9.org/showthread.php?t=163819 Doom9 Forum] - STPresso discussion.<br>
 
- [http://forum.doom9.org/showthread.php?t=163819 Doom9 Forum] - STPresso discussion.<br>
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-----------------------------------------------
 
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'''Back to [[External_filters#Spatio-Temporal_Denoisers| External Filters]] &larr;'''
 
'''Back to [[External_filters#Spatio-Temporal_Denoisers| External Filters]] &larr;'''

Latest revision as of 06:11, 22 February 2015

Abstract
Author Didée
Version 2012/01/15
Download STPresso script
Category Spatial-Temporal Denoisers
License
Discussion Doom9 Thread

Contents

[edit] Description

The goal of STPresso (Spatio-Temporal Pressdown) is to "dampen the grain just a little, to keep the original look, and make it fast". In other words it makes a video more compressible without losing detail and original grain structure.
STPresso is recommended for content up to 720p because "the spatial part might be a bit too narrow for 1080p encoding (since it's only a 3x3 kernel)".

[edit] Requirements

  • AviSynth 2.5.8 or later
  • Progressive input only
  • Supported color formats: YV12

[edit] Required Plugins

Latest versions of the following filters are recommended unless stated otherwise.


[edit] Syntax and Parameters

STPresso (clip clp, int "limit", int "bias", int "RGmode", int "tthr", int "tlimit", int "tbias", int "back")


clip  clp =
Input clip.


int  limit = 3
Spatial limit: the spatial part won't change a pixel more than this.


int  bias = 24
The percentage of the spatial filter that will apply.


int  RGmode = 4
The spatial filter is RemoveGrain, this is its mode.


int  tthr = 12
Temporal threshold for FluxSmooth; Can be set "a good bit bigger" than usually.


int  tlimit = 3
The temporal filter won't change a pixel more than this.


int  tbias = 49
The percentage of the temporal filter that will apply.


int  back = 1
After all changes have been calculated, reduce all pixel changes by this value. (Shift "back" towards original value)


[edit] Examples

STPresso with all default values:

AviSource("Blah.avi")
STPresso(limit=3, bias=24, RGmode=4, tthr=12, tlimit=3, tbias=49, back=1)


[edit] Changelog

Version         Date            Changes
2012/01/15 2012/01/15 - Initial release


[edit] External Links

- Doom9 Forum - STPresso discussion.



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