Automotive Clearcoat Orange-Peel Waviness & Distinctness-of-Image (DOI) Grader

Deterministic Reflected square-wave grille edge-spread modulation transfer (ASTM D5767 DOI) + spatial bandpass waviness spectrum (SW 0.3–1.2 mm vs LW 1.2–12 mm) engine (.jpg, .heic, .dng, .pdf) built for BYK-Gardner Alt, Rupes Detailing, Glasurit / Standox, Porsche / Mercedes — zero-upload ephemeral Wasm RAM execution.

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