Open-source no-reference toolbox advisor + score-to-band calculator

A dependency-free (pure standard-library) Python companion that computes NO metric itself. --registry prints the open-source no-reference toolbox catalogue (FFmpeg built-in NR filters, CAMBI, pyiqa/IQA-PyTorch, scikit-video, FAST-VQA, DOVER, Google UVQ, itu-p1203) with what each measures, install command, reference (always none), licence, and reported accuracy. --recommend takes needs as flags (--use {live,ugc,vod-screening,banding,blockiness,blur,per-frame,session}, --gpu, --commercial, --laten