Anyone using the Decomb filter from Don Graft?

[perdomot]

I've heard that it is great for doing IVTC but I haven't been able to find any sample script on how to use it at any of the sites. Can someone post their sample script? Thanks.

[sterno]

An example of IVTC (and several other things) is included in the documentation for decomb. The short answer is that you need to do a telecide() and a decimate(cycle=5), but there are other options you can pass to those functions for higher quality or faster processing. I usually use something like this:

telecide(blend=false)
decomb(cycle=5, quality=3)

Sometimes I also specify the pattern guidance for telecide, I'm not really sure how much it helps. blend=false makes telecide use blending instead of interpolation for combed material, which is supposed to be faster.

quality=3 makes decomb use a slower but more accurate comparison to identify which frames are duplicates and can be deleted. I started using that because in some slightly-noisy material where only small parts of the image were moving the default setting would sometimes drop the wrong frames. For most high-quality material it's probably not necessary.

[perdomot]

Thanks. I wrote a script out and tested it against my other IVTC filter but I can't see a difference between them. I'll probably stick with the Decomb just because everyone seems to like it.