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4th November 2013, 07:16 | #1 | Link |
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Removing these combing(?) artifacts
I'm not sure if this is combing or some other artifact but after trying about 10 deinterlacers I could not find anything that worked. Sample at http://www.sendspace.com/file/s6yyra if anyone wants to take a stab at it.
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4th November 2013, 13:21 | #3 | Link |
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Not sure about that being low bitrate artifacts. It looks like somebody did a bad deinterlacing on it, or processed interlaced video as if it was progressive or something. So, turbojet, please tell us more about your source...where you got it and how it was captured/processed. It will be better to mitigate this at the root cause.
Last edited by Guest; 4th November 2013 at 13:26. |
5th November 2013, 00:25 | #5 | Link |
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Deblock_QED didn't do much but blur the image
Source is untouched capture from local CBS affiliate, not cable/satellite It's 3:2 pulldown and the image in OP is after ivtc. If you frame step the 2 dirty frames out of 5 are really bad looking at times in the mpg from OP. The artifacts really pop out after ivtc while playback in WMP/WMC of the original 30fps mpg it doesn't show much at all, although the dirty frames are still there.
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5th November 2013, 00:27 | #6 | Link |
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You'll get much better help if you post an unprocessed source sample. It's unbelievable that CBS would broadcast anything so bad as what you have shown. If the unprocessed source looks that bad, then you need to look at your capture process. How did you capture that?
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5th November 2013, 00:57 | #7 | Link |
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Original is in the OP. The capture doesn't look nearly that bad, basically the 2 dirty frames need to be cleaned up to 2 identical clean frames to remove 1. Captured with WMC with no errors according to videoredo. It's not common to find things like this but it is common in a few shows I watch like "The Crazy Ones' here and 'The Blacklist' on NBC.
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5th November 2013, 01:38 | #9 | Link |
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Below the image I wrote: Sample at http://www.sendspace.com/file/s6yyra if anyone wants to take a stab at it.
Quoting doesn't work, too short.
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6th November 2013, 00:57 | #11 | Link |
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Had a feeling that might be the case after looking at it frame by frame, thanks for taking the time to look.
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7th November 2013, 15:44 | #12 | Link |
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typical mpeg2 compression artifacts
use strong mdegain something like Code:
a=last a.smdegrain (tr=12,thsad=2000,thsadc=2000).repair (a,mode=13) Last edited by feisty2; 7th November 2013 at 15:48. |
9th November 2013, 08:51 | #13 | Link |
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SMDegrain is really slow, I suppose MT could help but I don't plan on spending all that much time for the few times this issue occurs, thanks for the suggestion though.
TDecimate(hybrid=1) does something interesting, it discards the bad frames, mostly, and blends the surrounding good frames. This would work great if instead of blending it would interpolate the surrounding 'good' frames, is that possible?
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9th November 2013, 12:43 | #14 | Link | |
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Quote:
Last edited by feisty2; 9th November 2013 at 12:51. |
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9th November 2013, 12:46 | #15 | Link | |
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Quote:
your code snippet gives me: Code:
MAnalyse does not have a named argument "multi"" (SMDegrain v.2.2d) Using Avisynth 2.6.0.5 MT (SET's build) mvtools2 v.2.5.11.13 mt_masktools26 2.0.48.0 |
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