AWarpSharp

Latest revision as of 18:13, 24 November 2017

[edit] 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.

Note: aWarpsharp is considered deprecated, aWarpSharp2 is highly recommended as a drop-in replacement.

[edit] Known Issues

aWarpSharp is known to cause some color artifacts around the edges, read the following threads for more information.

• aWarpSharp edge artifacts
• aWarpSharp green artifacts on edges.
• Using BorderMirror to pad the input before using aWarpSharp.

[edit] Requirements

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

• ISSE compatible CPU.

[edit] Syntax and Parameters

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

clip   =

Input clip.

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.

[edit] Examples

aWarpSharp with all default settings:

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

[edit] Changelog

Version      Date            Changes

beta 1       2003/02/03      - Initial release

[edit] Archived Downloads

[edit] External Links

• Doom9 Forum - aWarpSharp discussion.
• Scintilla's Guide - Additional information.

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