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Old 02-17-2010, 01:14 AM
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NewVista NewVista is offline
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Join Date: Jan 2010
Location: Milw, WI
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Quote:
Originally Posted by Aussie Bloke View Post
http://www.techmind.org/colrec/
Makes me wonder ..a program ..to recover.. NTSC
Check out the diagonal lines on link foto; I'd forgotten how bad PAL was. With NTSC, dots don't align but are neatly 180 deg out of phase so TVs/ video effects can extract most luminance detail with a simple comb filter (can't do that with PAL). Also PAL decoding loses half chroma V resolution and every generation of co-dec displaces the chroma down one line! At least it's not as bad as SECAM which effects manufacturers wouldn't support.

Last edited by NewVista; 02-17-2010 at 01:21 AM.
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