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by aidenn0 4093 days ago
Okay, that sums up how things were about 5 years ago; PSNR and friends can catch some problems, but we still don't have great objective metrics for video quality.

[edit]

Some well-known, but hard to measure objectively psychovisual effects are that some kinds of noise are well tolerated in areas of high detail, and very large loss of detail can be tolerated in high-motion areas.