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I measured burned-in subtitle removal with PSNR. The failures are the interesting part.

Most "remove burned-in subtitles" tutorials end at a before/after. The after always looks fine as a thumbnail. The useful question is what "fine" means numerically, and almost nobody answers it. I spent a while on this, so I measured it. Here is the method, the numbers, and the two clips where it g…

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  1. 2026-11-04 08:27 · DEV Community — AI
    I measured burned-in subtitle removal with PSNR. The failures are the interesting part.

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