AWarpSharp2
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Revision as of 01:35, 24 November 2013
| Abstract | |
|---|---|
| Author | SEt |
| Version | 2012.03.28 |
| Download | aWarpSharp2 |
| Category | Sharpeners |
| Requirements | |
| License | GPLv2 |
| Discussion | |
Contents |
Description
- This filter implements the same WarpSharpening algorithm as aWarpSharp by Marc FD, but with several bugfixes and optimizations.
- In addition to the complete aWarpSharp2 algorithm, parts of the algorithm are also available as aSobel, aBlur, aWarp. This allows for more advanced processing.
Requirements:
- YV12
- MMXExt capable CPU, blur will be more precise around frame borders if SSSE3 is available.
Common Parameters
- thresh int = 128
- Range: 0 to 255
- Saturation limit for edge detection. Reduce for less aggressive sharpening.
- Range: 0 to 255
- blur int = 2 for type 0, 3 for type 1
- Range: 0 to 100
- Number of blur passes over edge mask.
- Less passes increase sharpening effect, but can produce major artifacts with high depth and thresh.
- You can use values higher than 100, but probably won't see any difference.
- Chroma is processed with (blur+1)/2 passes.
- Number of blur passes over edge mask.
- Range: 0 to 100
- type int = 0 for aWarpSharp2, 1 for aBlur
- Type of blur:
- 0 : radius 6 blur.
- 1 : radius 2 blur, requires around 8x more passes than type 0 for the same effect (will be just 2.5x slower), but produce better quality.
- Type of blur:
- depth int = 16 for aWarpSharp2, 3 for aWarp and aWarp4
- Range: -128 to 127
- Strength of the final warping. Negative values result in warping in opposite direction.
- Range: -128 to 127
- chroma int =
- Processing mode for chroma planes (U and V):
- 0 : fill with zeroes
- 1 : don't care, default for aSobel and aBlur
- 2 : copy
- 3 : process
- 4 : guide by luma - default for aWarpSharp, aWarp, and aWarp4 only
- 5 : same as 3, but luma isn't processed and just copied. Useful for filtering sources with certain chroma problems.
- 6 : same as 4, but luma isn't processed and just copied. Useful for filtering sources with certain chroma problems.
- Processing mode for chroma planes (U and V):
Filters
| Filter | Description | Color format |
|---|---|---|
| aBlur |
A blurring filter. |
YV12 |
| aSobel |
An edge dectecion filter. |
YV12 |
| aWarp |
A warp-sharpening filter. |
YV12 |
| aWarp4 |
Unlike aWarp, this uses a 4x larger source clip than the edgemask. This is useful for improving subpixel interpolation quality of the final step. |
YV12 |
| aWarpSharp |
Special fuction that keeps compatibility with ancient scripts that use the original aWarpSharp. |
YV12 |
| aWarpSharp2 |
The same as aWarp(aSobel().aBlur()) but a bit faster. |
YV12 |
Examples
AviSource("Blah.avi") aWarpSharp2()
Changelog
Changes 2012-03-28: - Added new final part aWarp4 that takes 4x upsampled source for better final subpixel interpolation. - aWarpSharp2 can now be also called by aWarpSharp() with internal parameters conversion for compatibility with ancient scripts. Direct aWarpSharp2 call is encouraged though. - New chroma values: 5 and 6: the same as 3 and 4, but luma isn't processed and just copied. Useful for filtering sources with certain chroma problems. - Changed some defaults.
Changes 2009-06-19: - renamed main filter from aWarpSharp to aWarpSharp2 for less confusion with original aWarpSharp - fixed wrong offsets in Warp - added new blur type - produce better quality, but around 2.5x slower - blur will be more precise around frame borders if SSSE3 is available - some optimizations, mostly noticeable on Core2 - removed support for undocumented parameters of original aWarpSharp
Changes 2009-05-24: - Initial release
Links
- Doom9 Forum - Discussion about aWarpSharp2.
