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| christian1979 |
| Posted: Feb 4 2013, 08:02 AM |
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Newbie
Group: Members
Posts: 4
Member No.: 34690
Joined: 14-April 12
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Hi :-)
I'm looking for a Tip, how to use a virtualDub-Filter ONLY in the ColorComponents (UV) and not in the Luminance-Channel (Y)....
I have captured an old Hi8-Tape and there are some color-fringing around the border...
look here:
Now I use a filter called "Border Controll", to warp the edge outwards...
The Problem is, this filter are applied to the complete Video (YUV Channels)...
But I only want to apply it just to the UV-Color channels!
Can someone help me to find a worklflow to do this in VirtualDub? |
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| Abrazo |
| Posted: Feb 4 2013, 08:41 PM |
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Advanced Member
Group: Members
Posts: 775
Member No.: 28995
Joined: 5-November 10
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1) COLORADJUSTMENT
There seems to exist a filter that probably will do what like: yuvsate
I do not know the origin - the readme.txt is not readable to me.
The filters name is yuvsate.vdf and it is dating from 3 may 2003.
A search via Google brought me here:
> http://www.infognition.com/VirtualDubFilters/mirror/
or here:
> http://www.infognition.com/VirtualDubFilte...correction.html (very last one on that page)
It is available as *.rar format.
I suppose you have WinRAR or another tool to extract the *.vdf
Once you have copied the yuvsate.vdf to the \plugins subfolder of your VirtualDub installation, and you start VirtualDub, this filter should be available.
2) BLACK BORDER REMOVAL
To remove the black border around the frames, you can apply the built-in nulltransform or the resize filter and use their 'Cropping...' functionality. |
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| christian1979 |
| Posted: Feb 4 2013, 09:19 PM |
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Newbie
Group: Members
Posts: 4
Member No.: 34690
Joined: 14-April 12
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Hi :-)
Oh no, you have not understand what I mean ;-)
I wanna stretch out the chroma-channels only like in the example!
look here:
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| Abrazo |
| Posted: Feb 4 2013, 09:50 PM |
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Advanced Member
Group: Members
Posts: 775
Member No.: 28995
Joined: 5-November 10
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Sorry, I am not clever enough to help you.
Myself, I would simply do a 'cropping' of the black borders (included the 'not coloured' borders).
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| dloneranger |
| Posted: Feb 5 2013, 06:20 AM |
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Moderator
Group: Moderators
Posts: 2366
Member No.: 22158
Joined: 26-September 07
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Avisynth can do it
You could load the file as two clips
Crop the second clip to the chroma size, resize it back to the origional size and then merge the chroma from clip two into clip one at 100%
Install Avisynth, then make a new text file somewhere
Copy the following into the text file but change the filename and the crop numbers
Rename the text file to something like MyVideo.avs
Load that .avs file with Virtualdub
eg
| CODE | #replace filename with the real one
a=avisource("c:\myfile.avi")
#change the crop numbers to cut off the extra pixels you don't want in the chroma
#numbers = left, top, -right,-bottom
#because it's yv12 the numbers have to be multiples of two
b=a.crop(4,4,-4,-4).bilinearresize(a.width,a.height)
done=mergechroma(a,b,1.0)
return(done)
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MultiAdjust JoinWav WavNormalize FFMPeg Input Plugin v1827 UnSharpMask
Windows7/8 Codec Chooser
All FccHandlers Stuff inc. Installers for acm codecs AAC, AC3, LameMp3 |
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