Doom9's Forum - View Single Post - Deinterlace should preserve original pixels?

Gavino · 13th August 2008, 08:13

@IanB
You're right that in the case of Bob (or anything that works on only one field at a time), input chroma could be preserved by changing the resampling positions for the chroma (but I'm not sure if this would be theoretically 'correct'). For deinterlacers that combine the two fields, I think it would be wrong. Consider the effect on a stationary scene.

@vcmohan.
See here for all the gory details.

I'm not sure it makes sense to do rotation on interlaced video.
Or do you plan to deinterlace, rotate and re-interlace?
Even then I don't think it could work right.

13th August 2008, 08:13	#11 \| Link
Gavino Avisynth language lover Join Date: Dec 2007 Location: Spain Posts: 3,431	@IanB You're right that in the case of Bob (or anything that works on only one field at a time), input chroma could be preserved by changing the resampling positions for the chroma (but I'm not sure if this would be theoretically 'correct'). For deinterlacers that combine the two fields, I think it would be wrong. Consider the effect on a stationary scene. @vcmohan. See here for all the gory details. I'm not sure it makes sense to do rotation on interlaced video. Or do you plan to deinterlace, rotate and re-interlace? Even then I don't think it could work right. Last edited by Gavino; 13th August 2008 at 08:30.