View Single Post
Old 29th March 2020, 15:09   #24  |  Link
poisondeathray
Registered User
 
Join Date: Sep 2007
Posts: 5,377
Quote:
Originally Posted by Stereodude View Post

However, I suspect I'm missing the forest for the trees getting lost in the minutia here. The less than idea PNSR result doesn't mean mean it looks bad or has visible artifacts. I didn't do a super exhaustive comparison, but in my quick look at a few frames, I couldn't see any quickly apparent difference in the before and after frame despite the sub 50dB PNSR of the worst spots (using uncompressed video formats).
Of course, and 50dB is usually great for intermediates.

But it seems the min values are lower than expected. This is qp 1 intra. You should be getting results higher than prores xq or cineform fs2.

PSNR is good for is detecting lossless (or not), and indicating trends, and potential workflow problems

So I'm wondering if something else going on there
poisondeathray is offline   Reply With Quote