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pinterf / mvtools

mvtools plugin for avisynth
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MDegrain issue - Unprocessed pixels along frame borders for blksize=16,24,32 #28

Open vasyl-zabolotniy opened 4 years ago

vasyl-zabolotniy commented 4 years ago

The number of unfiltered pixels depends on overlap parameter and frame size. Left and top is not affected, only bottom and or right. Changing hpad/vpad does not affect results. Maybe it's broken? Because old trick with AddBorders()+Crop() seems to work fine.

Functions checked: MDegrain3, MDegrainN. Standard 8bit yuv420 input. Confirmed for mvtools 2.7.41, 2.7.32. Avisynth versions: MT-2772, 3.4.0_20191020.

Details, what I've found :

blksize=16,overlap=0, 1280x720 >> OK blksize=16,overlap=0, 1920x1080 >> 8 lowermost px blksize=16,overlap=0, 3840x2160 >> OK

blksize=16,overlap=2, 1280x720 >> 4/4 (rightmost, lowermost) blksize=16,overlap=2, 1920x1080 >> OK blksize=16,overlap=2, 3840x2160 >> OK

blksize=16,overlap=4, 1280x720 >> 4 rightmost / 8 lowermost pixels blksize=16,overlap=4, 1920x1080 >> 8/ 8 blksize=16,overlap=4, 3840x2160 >> 8/ 8 blksize=16,overlap=8 >> OK

1280x720, blksize=24,overlap=0 >> 8 rightmost 1280x720, blksize=24,overlap=2 >> 2 rightmost / 14 lowermost pixels 1280x720, blksize=24,overlap=4 >> 16/ 16 1280x720, blksize=24,overlap=8 >> 8 / 8 1280x720, blksize=24,overlap=12 >> 8 rightmost

1920x1080, blksize=24,overlap=0 >> OK 1920x1080, blksize=24,overlap=2 >> 2 rightmost 1920x1080, blksize=24,overlap=4 >> 16 / 16 1920x1080, blksize=24,overlap=8 >> 8 rightmost 1920x1080, blksize=24,overlap=12 >> OK

3840x2160, blksize=24,overlap=0 >> OK 3840x2160, blksize=24,overlap=2 >> 8 rightmost 3840x2160, blksize=24,overlap=4 >> 16/ 16 3840x2160, blksize=24,overlap=8 >> 8 / 8 3840x2160, blksize=24,overlap=12 >> OK

1280x720, blksize=32,overlap=0 >> 16 lowermost 1280x720, blksize=32,overlap=4 >> 16 / 16 1280x720, blksize=32,overlap=8 >> 16 lowermost 1280x720, blksize=32,overlap=16 >> OK

1920x1080, blksize=32,overlap=0 >> 24 lowermost 1920x1080, blksize=32,overlap=4 >> 12/ 12 1920x1080, blksize=32,overlap=8 >> 16/ 16 1920x1080, blksize=32,overlap=16 >> 8 lowermost

3840x2160, blksize=32,overlap=0 >> 16 lowermost 3840x2160, blksize=32,overlap=4 >> OK 3840x2160, blksize=32,overlap=8 >> 16/ 16 3840x2160, blksize=32,overlap=16 >> OK

pinterf commented 4 years ago

Well, it's not impossible that the very egdes are unprocessed, anyway, I'll check it after the holiday.