Is there a way to get rid of these halos? (is that even what it is, or ghosting?) I've tried BlindDeHalo3 but it doesn't really do much in the dark areas, IMO.
Code:AssumeTFF() QTGMC(Preset="Faster", SourceMatch=3, Lossless=1, Sharpness=0, FPSDivisor=1, TR2=2, EdiThreads=8, NoiseRestore=2) crop(6,0,-8,-16) Lanczos4Resize(720,540) BlindDeHalo3( rx=3.0, ry=3.0, strength=80, \ lodamp=0.0, hidamp=0.0, sharpness=0.6, tweaker=0.0, \ PPmode=0, PPlimit=0, interlaced=false) DeHalo_alpha(brightstr=1.40)
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Not really looking into problems, just playing around with Vapoursynth and machine learning.
Side note: for dark halos, line thinning filters sometimes helpusers currently on my ignore list: deadrats, Stears555 -
Try something like:
Code:LWLibavVideoSource("mtv vmas 01 clip.VOB", cache=false, prefer_hw=2) QTGMC() BilinearResize(400, height) dehalo_alpha(rx=2.5, ry=1.0, brightstr=1.0, darkstr=1.0) Sharpen(0.5, 0.0) nnedi3_rpow2(2, cshift="Spline36Resize", fwidth=720, fheight=height) Sharpen(0.5, 0.0)
[Attachment 79906 - Click to enlarge] -
Side effect of resizing?
[Attachment 79906 - Click to enlarge] -
I didn't scale the source to square pixels or remove black borders. Just pointing out how to remove halos.
dehalo_alpha() works better with smaller radii (rx and ry). That's why I downscaled before calling it and upscaled after. The downscaling doesn't hurt the underlying video much. The sharpening was a quick attempt to... sharpen. One can play around with all the parameters to their liking. Or maybe even use an edge mask to limit the dehaloing and sharpening to the worst halos.
If you really want to remove only dark halos you can set the brightstr to 0.
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