AWarpSharp

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Abstract
Author Marc FD
Version beta 1
Download aWarpSharp beta 1.zip
Category Sharpeners
License Closed source
Discussion Doom9 Thread


Contents

Description

A warp sharpening filter. aWarpSharp implements high-quality original warp sharpening.
"original" meaning the algorithm used differs on several points to other warp sharpening filters. The code is fully ISSE optimized with high accuracy.


Known Issues

aWarpSharp is known to cause some color artifacts around the edges, read the following threads for more information.
aWarpSharp problem
aWarpSharp causing green on the sides of video


Requirements

- AviSynth 2.5.8 or later
- Progressive input only
- Supported color formats: YV12
- ISSE compatible CPU.


Syntax and Parameters

aWarpSharp (clip, float "depth", int "blurlevel", float "thresh", int "cm", int "bm", bool "show")


float  depth = 16.0
Range: 0.0 - 64.0
depth determines the amount of warping. It directly affects how thin your lines will end up.


int  blurlevel = 2
Range: 1 - 4
Higher blurlevel values are slower, but can give a big boost to the warp sharpening.
If you find that the warping is distorting certain shapes too much, try lowering this parameter first.


float  thresh = 0.5
Range: 0.0 - 1.0
The bump mapping saturation setting:
A float value of 1.0 means 100% (max).
The default value (0.5) is recommended for maximum quality.
If you tweak this setting, keep in mind it will enhance inequality of warping between edges.


int  cm = 3
Chroma mode:
  • 0 : disables chroma filtering
  • 1 : enables chroma warping with luma bump map (recommended)
  • 2 : enables chroma independent warping & bump map
  • 3 : chroma -> chroma (default)
Note: Default in the included documentation is wrong. This wiki documentation has been revised and it's correct.


int  bm = 2
Blur modes:
  • 0 : hq 3-pass
  • 1 : fast 3-pass
  • 2 : fast 1-pass
  • 3 : light blur


bool  show = false
If true, it will show an edge mask; useful for adjusting depth, blurlevel.


Examples

aWarpSharp with all default settings:

AviSource("Blah.avi")
aWarpSharp(depth=16.0, blurlevel=2, thresh=0.5, cm=3, bm=2, show=false)


Changelog

Version      Date            Changes
beta 1 2003/02/03 - Initial release


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