A high SSIM score and a clean export are not the same thing. What PSNR, SSIM, LPIPS and FVD measure, where each misleads, and how a remover gates quality.
Mask size decides watermark removal quality: the repair-area economics of bounding boxes, pixel-precise selections, and dilation, with a 30-second check.
The real reason watermark removal flickers — and the per-frame, optical-flow, and DiT mechanics behind stable results, with a 60-second self-check.
The 2026 video inpainting landscape, from ProPainter's optical flow to one-step diffusion — and what each model generation means for your watermark removal.
How watermark detection models work: CNN detection, SAM 2 mask generation, temporal tracking for moving marks, and the invisible-watermark research frontier.
