Quote:
Originally Posted by huhn
for 1080p is pretty easy to show "major" difference been chroma scaler.
|
Yeah, if it's done wrong it can be very visible. I got paid a good fee in the mid aughts to make chroma upsampling error triggering test patterns.
Quote:
|
for UHD there is no 4:4:4 source i know of so i have to take game footage to show the difference which is again not that hard. games are simply different from movies.
|
Studio-provided IMF mezzanines often will be 12-bit 4:4:4. And most pro sources are at least 10-bit 4:2:2. Some of the blender.org projects are available as 16-bit RGB 4:4:4 frames as well.
Game footage is actually pretty good for finding chroma edge cases, since it gets rendered per-pixel and anti-aliasing tech is far from perfect. HUD details like red text in a compass or something can have quite sharp chroma details.