Huge colour error with TMPGEnc !!!

[mikk]

Has anyone else noticed that the colours in a MPEG files encoded by TMPGEnc have different colours from the original? Is it something to do with the RGB to YUV conversion?

whatever it is, i expect an mpeg encoder to output the same colours that were put in. if i encoded mp3s and some notes came out higher while others came out lower i would be annoyed. but that's what tmpgenc is doing to the colours.

i'm encoding full range (i.e. tv scale) colour sent to tmpgenc by dvd2avi 1.76 and the m2v vfapi plugin that was listed on http://www.vcdhelp.com. i ticked the 'Output YUV data as Basic YCbCr not CCIR601'. the blacker than black colours are being preserved as they should, but all the colours except blacks, greys, and whites are wrong.

i especially notice that the red is way too high. but it's not just a simple case of cranking the red down with colour correction. the colours are all over the place. i tried a test pattern and i could see that every colour was affected differently. the rgb values can be higher or lower depending on which colour is being encoded. e.g. for yellow the red might be lower and the green and blue too high, but for pink, the red might be too high and the green too low, while the blue is fine (i made these colours up in my head).

please help me fix this problem. i like tmpgenc, but i can't use it if i can't fix this problem.

[sean madison]

ShiZZZoN-
go into advanced tab in tmpgenc, double clikc custom color correction
Set it to yuv and adjust saturation first see if that fixes it, then i would try min and max limit

The last thing i would try is using the CMYK setting

[mikk]

already spent a day trying to get the colours to match. i can improve it, but i want perfection. is there any way to get it perfect? perhaps another encoder?

[humdinger]

ive noticed this on both TMPGenc and the panasonic encoder, that the colours or the final mpg are 'washed out' compared to the avi. this can be annoying especially when converting homemovies, which dont have very good colour in the first place. I managed to get around this though in the panasonic encoder by setting the colour tone correction to PC rather than TV (even though it usually ends up on a TV) under the advanced options. trouble is i'd much prefere to use tmpg as its slightly faster