View Full Version : Virtual dub and filter orders
Serbianboss
15th September 2006, 19:36
I work with DV avi(interlaced,Pal) material and want to make xvid with virtual dub.
Does is this good filter order:
Use deinterlance filter(asvzzz deinterlance)
Use internal VD resize filter
Use some denoise filter
Use sharpening filter
Use some color correction filter
What you thing about this filter order in virtual dub.Is that ok or is better to change something.
LoRd_MuldeR
16th September 2006, 02:11
Looks okay :)
Except the denoise filter. I'd denoise before resize.
But I'm not 100% sure. Might also depend on what denoiser you use.
Serbianboss
16th September 2006, 11:41
Is this better, i put resize filter at the end
Use deinterlance filter(asvzzz deinterlance)
Use some denoise filter
Use sharpening filter
Use some color correction filter
Use internal VD resize filter
LoRd_MuldeR
16th September 2006, 12:59
Maybe sharpen after resize, because resizing can blur the imge too. But I cannot tell it for sure. Try out yourself with your specific video. And also note that sharpening can make the video look nice before the final encoding, but migh produce some ugly artifacts in the compressed video. So don't sharpen too much.
Serbianboss
17th September 2006, 12:46
thanks for reply
This is the code now.I work with dv avi material and make divx.
Use deinterlance filter(asvzzz deinterlance)
Use some denoise filter
Use some color correction filter
Use internal VD resize filter
Use sharpening filter
Which sharpen filter is good for virtual dub
LoRd_MuldeR
17th September 2006, 13:46
Which sharpen filter is good for virtual dub
I'd use ffvdub to get access to ffdshow's filters.
This way you can choose between various sharpen filters.
IMO "MSharpen" and "Unsharp Mask" give nice results.
Serbianboss
17th September 2006, 13:59
thanks again for reply.
One more thing.
Which good deinterlance and resize filter you reccomended.I am using asvzzz deinterlance and internal resize filter for long time and want to try maybe some better deinterlance/resize filter.
LoRd_MuldeR
17th September 2006, 15:56
thanks again for reply.
One more thing.
Which good deinterlance and resize filter you reccomended.I am using asvzzz deinterlance and internal resize filter for long time and want to try maybe some better deinterlance/resize filter.
VirtualDub already has "Lanczos3" method in it's internal resize filter. This is probably the best way of resizing, when you want to keep as much details as possible. IMO no need to use a different filter.
Deinterlacing is a pretty difficult story. I personaly prefer KernelDeinterlacer (also available via ffvdub) but you'll need a low threshold (~ 5-3) to remove all artifacts. TomsMoComp is also worth a look. Furthermore TDeint looks very promising. It's available as AviSynth filter and also in Avidemux, but AFAIK not in VirtualDub yet.
Serbianboss
17th September 2006, 16:31
now i try smart deinterlance filter is looks ok but i need to study options of that filter.
I am using leakkerneldeint when using avisynt(for making divx) but also i need to put low thresold(value 1) because with higher value i have motion artifacts.
For resize filter why is better to ise Lanczos3 instead precise bicubic.Does the picture with Lanczos3 is more sharper?
LoRd_MuldeR
17th September 2006, 16:55
now i try smart deinterlance filter is looks ok but i need to study options of that filter.
I was never satisfied with that one :(
So I'd prefer KernelDeinterlacer or leakkerneldeint.
Or give TDeint a try ;)
For resize filter why is better to ise Lanczos3 instead precise bicubic.Does the picture with Lanczos3 is more sharper?
Yes, it should be this way. But depends on the quality of your source video whether you will be able to spot the difference or not.
LanczosResize is an alternative to BicubicResize with high values of c about 0.6 ... 0.75 which produces quite strong sharpening. It usually offers better quality (fewer artifacts) and a sharp image.
Serbianboss
17th September 2006, 19:56
Does LanczosResize is stronger than Precise bicubic A=1.00 ?
LoRd_MuldeR
17th September 2006, 20:54
Does LanczosResize is stronger than Precise bicubic A=1.00 ?
Have a look yourself:
http://mulder.dummwiedeutsch.de/temp/Resize.7z
IMO there's not much difference :p
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