View Single Post
Old 22nd February 2010, 18:33   #2208  |  Link
cyberlolo
Registered User
 
Join Date: Feb 2010
Posts: 127
Quote:
Originally Posted by somy View Post
I agree with you. However, with an ATI card, no matter which pixel format you choose, it will always compress RGB 0-255 to 16-235. The only way I solved this is to use YCrCb 4:4:4 output and overlay renderer. If you have a HD4000, this should do the trick for you, however if you use HD5000, there are problems with both YUC and RGB output:
YCrCb: yep, you get BTB and WTW, but the colour is wrong (ATI did RGB/YUC conversion producing wrong colour which is different from HD4000 YUC is output untouched IMO).
RGB: The luma is wrong, and it produces more banding than HD4000. The luma output is strange - 16-232 according to my measurment.
Nope, that's not correct. I have an ATI HD4850, I'm using Full RGB and I have BTB/WTW. And I had BTB/WTW when using YCrCb 4:2:2 too, so maybe it's an issue with your card.
cyberlolo is offline   Reply With Quote