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jmac698 · 27th February 2006, 16:33

I was waiting for someone to say that

Yes, of course it's debatable, but let me explain my reasoning.
If your card caps in CCIR656 format, that's 4:2:0 or 4 pixels/luma, your resolution is 720x480 Y, 360x240 U/V. If we call this "720x480 resolution", then any increase must be spoken in different terms. My technique caps 720x480 Y, 720x480 U/V. You cannot store that resolution in a mpeg2 without loss. The only way to keep this true color resolution is with 4x larger mpg file.

Or if you prefer, call it true 720x480, because usual 720x480 was never true. But be sure to call DVD quality not true 720x480 either.

Besides this debate, is the reality. I've tried it, and it does look better to me, even a test DVD with frequency tests shows better U/V response. And it's a hidef source sent at 4:4:4 (apparently). That just shows you - it takes a hi-def mpg2, downsampled, to make true 4:4:4 color.

What if I said I could also cap 480P? Is that an increase either?

There are also theories of perceptual resolution. Usually the saying goes, we can't see colors in hires. So how come I can see fringes of colors in s-video? It's too low color rez vs luma rez.

27th February 2006, 16:33	#3 \| Link
jmac698 Registered User Join Date: Jan 2006 Posts: 1,867	resolution controversy I was waiting for someone to say that Yes, of course it's debatable, but let me explain my reasoning. If your card caps in CCIR656 format, that's 4:2:0 or 4 pixels/luma, your resolution is 720x480 Y, 360x240 U/V. If we call this "720x480 resolution", then any increase must be spoken in different terms. My technique caps 720x480 Y, 720x480 U/V. You cannot store that resolution in a mpeg2 without loss. The only way to keep this true color resolution is with 4x larger mpg file. Or if you prefer, call it true 720x480, because usual 720x480 was never true. But be sure to call DVD quality not true 720x480 either. Besides this debate, is the reality. I've tried it, and it does look better to me, even a test DVD with frequency tests shows better U/V response. And it's a hidef source sent at 4:4:4 (apparently). That just shows you - it takes a hi-def mpg2, downsampled, to make true 4:4:4 color. What if I said I could also cap 480P? Is that an increase either? There are also theories of perceptual resolution. Usually the saying goes, we can't see colors in hires. So how come I can see fringes of colors in s-video? It's too low color rez vs luma rez.