View Full Version : Removing vertical scanlines from a video
Sp00kyFox
4th February 2008, 22:55
Maybe someone can help me, I can't find such a filter.
Here a pic of the problem:
http://img352.imageshack.us/img352/6133/re4verticalscanlinesqk2.th.png (http://img352.imageshack.us/img352/6133/re4verticalscanlinesqk2.png)
btw:
maybe you should zoom the pic to see the scanlines
Ranguvar
5th February 2008, 00:01
Yeah, I had that a while back...
Ummm... not sure exactly what got it. I think it was fft3dfilter or denoise3d.
Sp00kyFox
5th February 2008, 00:43
well seems a little bit too heavy for that problem... I think it should be possible to solve by selecting every second vertical line and change their brightness with a fix value.
edit:
no, that wouldn't be a solution, cuz the source files are mpgs so the vertical scanlines are sometimes blured, so in some scenes it would work but in others the fix value would'nt help.
well I'll try it fft3dfilter and denoise3d.
scharfis_brain
5th February 2008, 02:53
try blur(1,0)
Sp00kyFox
5th February 2008, 09:11
oh nice, thx that seems to work best. the scanlines aren't visible any more and it seems that there is no loss of detail.
edit:
well on the first sight, indeed there is a quality/detail loss which isn't acceptable for me.
Didée
5th February 2008, 10:09
Try Vinverse:
TurnLeft().Vinverse().TurnRight()
Sp00kyFox
5th February 2008, 10:27
yeah, vinverse works nice. thx goes to the famous didée, you alread helped me a lot in the past with your scripts, ect ;-)
here some pics of the result
source:
http://img247.imageshack.us/img247/6507/610sourcekr2.th.png (http://img247.imageshack.us/img247/6507/610sourcekr2.png)
blur(1,0):
http://img247.imageshack.us/img247/8498/610blurur2.th.png (http://img247.imageshack.us/img247/8498/610blurur2.png)
vinverse:
http://img247.imageshack.us/img247/9342/610vinversenh3.th.png (http://img247.imageshack.us/img247/9342/610vinversenh3.png)
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