View Single Post
Old 16th March 2014, 22:06   #25082  |  Link
6233638
Registered User
 
Join Date: Apr 2009
Posts: 1,019
Quote:
Originally Posted by Mangix View Post
I have a question about the test image in the first page: http://madshi.net/madVR/ChromaRes.png

How is it meant to be used? On my monitor, I see 4:4:4 clearly and 4:2:2 kind of faded whereas on my TV, it's the exact opposite. And how are you supposed to tell if the display is actually 4:2:0?
Here's a slightly updated pattern: http://abload.de/img/chromaresmzjib.png

And here are examples of what it should look like:
  • 4:4:4 display - the "4:4:4" text is darker than the background, and "4:2:2" should barely be visible.
  • 4:2:2 display - the "4:2:2" text should be brighter than the background, and the "4:4:4" text should almost blend into the background. There should be a bright border around the edge of the image.
  • 4:2:0 display - none of the text is clearly visible (it may be faintly visible) and the center of the image should be dark, with a bright border around the edge of the screen.
Now it won't look that clean in reality, but should be enough to let you know what your display is doing.
EDIT: Photographs showing what 4:4:4 and 4:2:2 should look like: http://forum.doom9.org/showpost.php?...ostcount=25122

I'm not sure why, but I don't seem to be getting as good results with the pattern now as I did originally. (the 4:4:4 text doesn't blend into the background as well as I'd like)

Quote:
Originally Posted by Mangix View Post
if the TV is 4:2:2, anything to change on madVR's side?
There's probably no need to use chroma scaling better than Bicubic 75 AR. (and the anti-ringing filter may even be unnecessary)

Last edited by 6233638; 17th March 2014 at 15:30.
6233638 is offline   Reply With Quote