A small, self-contained Python script that finds ringing in a single frame without a reference image — it locates strong edges and scores the high-frequency ripple energy in the band just beside them, relative to calm regions far from edges. Given two consecutive frames, it also measures mosquito noise: how much more the near-edge band changes frame-to-frame than the calm regions do (the temporal-flicker signature), after subtracting the global change. Works on live, UGC, and screen content wher
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The handbook · 7 volumes
Fora Soft Video Engineering Handbook
This no-reference ringing and mosquito-noise detector scores the ripple energy beside strong edges in a single frame and measures mosquito noise across two frames. We wrote seven volumes on the video stack; Volume 1 covers compression artifacts, transforms and quantization and quality metrics in depth, with Volume 6 on AI models for no-reference scoring and Volume 3 on QoE. Written by Nikolay Sapunov, CEO at Fora Soft.
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