I find it hard to confidently compare original videos to their processed results, regardless of what enhancement program I’m using.
I might miss poor denoise performance on one, color shift on another, ditto pixel shift, contrast/brightness issues, jitter, halos, - the seemingly endless basket of parameters one should consider when evaluating whether an enhancement is an improvement or not.
Is there an app (bonus points if it runs on Mac) that will evaluate two video files and yield some partially objective judgement whether the result is better than the original? This sounds like a big ask, but I’m sure everyone who has asked themselves (is this better?) understands the need. Any ideas?
There is no “objectively better” for any software to understand. Video quality is subjective. There have been attempts at determining a value that would represent video quality (like PSNR for instance) but a higher PSNR isn’t necessarily a better looking video to the human eye. Especially since different people see different things.
You can use ffmpeg to run a PSNR check (or other metric) over your file. Could be a starting point. But in the end you will have to decide with your eyes.
I haven’t researched it, but I got the idea that evaluations like PSNR are meant to get a rating against a lossless source.
The best quality test I have so far is my wife. She doesn’t care about quality or resolution, but if she makes a comment about something on the screen looking like something it’s not supposed to be, I know the AI did a bad job.
