Chroma issues, not sure what to do...

[pissed]

Hi; been a while since I last posted (possibly a good sign? :D) but I've run into some problems....

http://www.mediafire.com/?2udtvbhabey66tm

Soz, clip might be bigger than preferred but that's it...

so I've deinterlaced with various filters... kernel, decomb, yadif, and tomsmocomp (with decimate ofcourse to 23.976) as well as force film + deint, but get that nasty chroma.

Is that in the original source? If so what can I do to minimise it? If it's not in the source, how am I causing it, and how can I fix it?

[pissed]

Bump; No one got any ideas?

[Blue_MiSfit]

Hi "pissed"

I'm taking a look at your sample now.

Derek

[Blue_MiSfit]

OK so I see the chroma issues you're describing. It's something odd in the source definitely. The source is indeed coded with hard pulldown, and should be manually inverse telecined.

I don't know the root cause or what would technically be the "most correct" solution, but this seems to do a nice job:


MPEG2Source(...) #honor pulldown enabled, so this returns 29.97 interlaced
TFM() #Defaults
Vinverse() #The DLL version, not the script version from MVBob
TDecimate() #Defaults


This seems to look pretty good to me! Vinverse does a nice job of cleaning up residual combing after inverse telecine.

Derek