AWarpSharp

Abstract
Author	Marc FD
Version	beta 2?
Download	aWarpSharp(Pruned).zip
Category	Sharpeners
License	Closed source

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.

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 = 2

Chroma mode:

• 0 : disables chroma filtering
• 1 : enables chroma independent warping & bump map
• 2 : enables chroma warping with luma bump map (recommended)
• 3 : chroma -> luma
• 4 : chroma -> chroma

Note: Mapping for cm=1/2 is wrong in the included documentation. This wiki documentation has been revised and it's correct.

int  bm = 1

Blur modes:

• 0 : hq 3-pass
• 1 : fast 3-pass
• 2 : fast 1-pass
• 3 : light blur

int  tweak = 0

• 0 : disabled
• 1 : shows an edge mask; useful for adjusting depth, blurlevel.

Examples

aWarpSharp with all default values.

AviSource("Blah.avi")
Awarpsharp(depth=16.0, blurlevel=2, thresh=0.5, cm=2, bm=1, tweak=0)

Changelog

Version      Date            Changes

beta 2?      2004/05/25      - Changed defaults to "cm" and "bm"
                             - Changed cm mappings: 
                               cm=1 is now cm=2; cm=2 is now cm=1
                             - Replaced "show" parameter with "tweak"

Beta 1       2003/02/03      - Initial release

aWarpSharp beta 1

aWarpSharp beta 1 documentation.

External Links

- Doom9 Forum - Discussion about aWarpSharp.

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