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Posted by Phil M on 11/09/06 19:43
Hi all. I'm trying to figure out if there's any visual (to the eye)
difference between 4:1:1 and 4:2:2 footage?
I recorded footage from Betacam SX camera master via the SDI port to DVCAM
and upon playback, I couldn't visually see any difference in colors.
I understand the theory that in 4:2:2 the chroma components are sampled at
half the sample rate of luma, and in 4:1:1 the horizontal color resolution
is quartered. But visually, is there anything more that the eye can see when
NTSC video plays at full motion? Or the difference shows up only on color
measuring equipment or when one grabs a screenshot still and magnifies it?
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