Line thickness and color oversaturation

[sanlyn]

So there even is a difference of a progressive film and a progressive chroma channel o.0?

There is, and it's even more complicated than it sounds. But IMHO I don't think you'll have to worry about it. But if want some skinny on the subject, get some basic info at http://www.digitalfaq.com/dvdguides/capture/understandsource.htm
and
http://www.100fps.com/

Have some coffee and/or snacks handy while you browse.

[jagabo]

This site has a very detailed discussion of decoding interlaced YV12 as if it is progressive:

http://www.hometheaterhifi.com/volume_8_2/dvd-benchmark-special-report-chroma-bug-4-2001.html

[waefwaeefwaefw]

OMG really a subject for the pros in the industry! But indeed interesting.
What you guess, when will a medium have enough space for a 4:4:4 film?
My guess is around 2025/2026

[edDV]

You can record 4:4:4 RGB now but that has just as many color balance issues.

[waefwaeefwaefw]

I was rather referring to a medium like DVD, Bluray - when would those successor media have enough raw capacity to view a whole movie in 4:4:4.

[jagabo]

They'll probably still use 4:2:0 (really 4:1:1 as a ratio) because the human eye has less resolution for colors than intensity.

[waefwaeefwaefw]

That would only leave the resolution for improvement - once again >.>

[edDV]

RGB is inefficient for the end product. It is only used during production.

Similar to uncompressed audio vs AC3 or DTS.

[waefwaeefwaefw]

just as long as the media can't serve the necessary bandwidth but I guess jagabo is right with his thinking

[jagabo]

That would only leave the resolution for improvement - once again >.>

I'm not sure you understand. 4:4:4, 4:2:2, 4:2:0, 4:1:1 are refer to the relative resolution of the luma and chroma channels:

4:4:4 -- for every four pixels of luma there are 4 Pb and 4 Pr values. 720x480, 720x480, 720x480
4:2:2 -- for every four pixels of luma there are 2 Pb and 2 Pr values. 720x480, 360x480, 360x480
4:1:1 -- for every four pixels of luma there are 1 Pb and 1 Pr values. 720x480, 180x480, 180x480
4:2:0 -- for every four pixels of luma there are 1 Pb and 1 Pr values. 720x480, 360x240, 360x240

It doesn't have anything to do with the color gamut.

[waefwaeefwaefw]

Actually I wasn't even pointing the color gamut this time^^
No no I got what you say!^^

[2Bdecided]

There are a few satellite channels that broadcast with 4:2:2 chroma rather than 4:2:0. Most standard boxes can't receive them.

Cheers,
David.