CCE Conversion Looks Bad For Red

[joed]

I have been using DVD2SVCD to convert. I am using CBR with bitrates around 2000-3000 (depending on movie length). In that bitrate region, reds are blocky, and dark scenes are a little blocky. But the red scenes are really bad. I have played with the image quality priority, with not too much luck (between 10 and 50).

Is there any way to fix the blocky red problem?

[homerpez]

This may sound odd, but this is normal. This seems to a "standard" for MPEG-1 and MPEG-2 encoding... really bright red looks like blocks.

Did you view your movie on a TV, or on the computer screen? Second weird thing about this phenomenon... it goes away on an Interlaced screen...

[kinneera]

I don't claim to know if there is any technical basis to this whatsoever, but I wouldn't be surprised if this has something to do with the fact that MPEG at main profile main level drops the red channel entirely. (The 0 part of 4:2:0)

[joed]

This may sound odd, but this is normal. This seems to a "standard" for MPEG-1 and MPEG-2 encoding... really bright red looks like blocks.

Did you view your movie on a TV, or on the computer screen? Second weird thing about this phenomenon... it goes away on an Interlaced screen...

Unfortunately it occurs on my computer and my bigscreen TV (with a line doubler). I have not tried it on another TV.

[xeromark]

Red is the lowest frequency on the color band. Therefore it is the most difficult to reproduce. This happens with satellite images and even some DVDs with low bitrates.

[homerpez]

I recall a certain scene in "The Emperor's New Groove"... the first scene where the big, dumb bodyguard character has an "episode", and sees an angel and a devil beside him. This is the first time I saw this problem with red (in the devil's costume).

Even on the source DVD, it did appear to be more blocky and linear than the other colors. But, in my case, playing it on an interlaced screen (normal TV) eliminated this effect.

Is there any way to turn off features like "line doubler"? May be the only way out...

[kwag]

Have you tried MPEG-1 at around 2,000Kbps bitrates?.

I don't see any bleeding on any color, at least with the latest version of TMPEG.

kwag