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Old 22nd September 2004, 22:44   #1  |  Link
scharfis_brain
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Join Date: Mar 2003
Location: Germany
Posts: 3,607
reinterpolate420 - eliminate chroma jaggyness of PAL-DV

Code:
function reinterpolate420(clip x)
{
	u=x.utoy()
	v=x.vtoy()
	
	u=u.separatefields().separatefields().selectevery(4,1,2).tomsmocomp(1,-1,0).assumefieldbased().weave()
	v=v.separatefields().separatefields().selectevery(4,1,2).tomsmocomp(1,-1,0).assumefieldbased().weave()

	ytouv(u,v,x)
}
this function will only work properly, if your DV-Decoder upsamples the interplaced YUV420 (YV12) Chroma to yuy2 using point-sampling!

the results are IMO very good:



It becomes quite useful, if you intend to deinterlace your PALDV for achieving some kind of Film-Look, for deshaking-pre-processing further filtering etc.
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Last edited by scharfis_brain; 22nd September 2004 at 22:48.
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