gizmotech
14th April 2004, 15:43
NOTE: I was did not create these filters. I'm just the pr-whore
Bifrost is a first attempt at solving the problems of derainbowing without performing spacial nuking (ala ssiq and mf). By analyzing a series of frames within a temporal threshold, it determines the max number of frames available w/o change and then performs temporal blending to remove artifacts, most namely rainbows. The filter uses a series of thresholds to determine movement on the frames, and when it identifies a progression of frames it cannot process through temporal blending (ie pans, fast motion, etc) then it launches it's alternate processor.
Which leads to the next item:
SSIQ 0.6 for AVS in yuy2 and yv12 Released!
SSIQ, previously only for vdub, was known for it's amazing powers of spacial nuking and being amazingly slow. Now you can use this amazing filter directly in avs w/o any form of color space conversion!
For comparison here are 2 screen shots. The top picture in each is the bifrost'ed source. The pic on the bottom is the original vob.
Armitage:
http://yatta.mellbin.org/misc/armitage1.png
Soul Hunter?
http://yatta.mellbin.org/misc/sh1.png
Advantages to bifrost. On slow motion/near static scenes rainbows can be greatly diminished w/o performing massive chroma channel blurring. Using the alt perameter a more powerful spacial nuker can be used on high motion scenes where chroma errors are less detectable.
Disadvantages. In some rare cases several variations on rainbowing can be too intentense to destroy w/ temporal blending alone. However when used in conjunction w/ a spacial nuker it can reduces the work required by a filter such as SSIQ and reduces chroma blurring/errors.
These 2 filters can be accessed @ the yatta site for more information.
GizmoTech PR-Whore
Bifrost is a first attempt at solving the problems of derainbowing without performing spacial nuking (ala ssiq and mf). By analyzing a series of frames within a temporal threshold, it determines the max number of frames available w/o change and then performs temporal blending to remove artifacts, most namely rainbows. The filter uses a series of thresholds to determine movement on the frames, and when it identifies a progression of frames it cannot process through temporal blending (ie pans, fast motion, etc) then it launches it's alternate processor.
Which leads to the next item:
SSIQ 0.6 for AVS in yuy2 and yv12 Released!
SSIQ, previously only for vdub, was known for it's amazing powers of spacial nuking and being amazingly slow. Now you can use this amazing filter directly in avs w/o any form of color space conversion!
For comparison here are 2 screen shots. The top picture in each is the bifrost'ed source. The pic on the bottom is the original vob.
Armitage:
http://yatta.mellbin.org/misc/armitage1.png
Soul Hunter?
http://yatta.mellbin.org/misc/sh1.png
Advantages to bifrost. On slow motion/near static scenes rainbows can be greatly diminished w/o performing massive chroma channel blurring. Using the alt perameter a more powerful spacial nuker can be used on high motion scenes where chroma errors are less detectable.
Disadvantages. In some rare cases several variations on rainbowing can be too intentense to destroy w/ temporal blending alone. However when used in conjunction w/ a spacial nuker it can reduces the work required by a filter such as SSIQ and reduces chroma blurring/errors.
These 2 filters can be accessed @ the yatta site for more information.
GizmoTech PR-Whore