nx_photomark_lib.nx

nx_photomark_lib.nx -- THE 2D PHOTO LANDMARKER, FIRST BYTE (aesthetictwin AT4 pm_canthal_tilt, AT23 rulers pm_landmarks pm_eyes pm_lips, AT30 cascade route, AT31 pm_referee; 2026-09-16). The estate's real input is a photograph, not a scan: this ruler places the canon landmarks a frontal still can carry -- both canthi of each eye and the vermilion split of the mouth -- and measures the axes that need NO absolute scale: canthal tilt per side (deg10, lateral canthus above the medial is positive, corrected for the head's roll read off the medial canthi), intercanthal_index (endocanthion span over exocanthion span, permil), intercanthal_eq_fissure (endocanthion span over the mean fissure width, permil) and upper_over_lower_lip (permil). Every value is MEASURED: it comes with the counts it rests on printed beside it, and a face the ruler cannot find, an eye pair it cannot pair or a mouth it cannot see is UNMEASURED by name, never a default. TWO ROUTES, one ruler. The CASCADE route (nx_facefind_lib over the loaded cascade data, beta-only bootstrap arm, AT30) gives the face box and an eye box per side; the SKIN route (a coarse skin grid, the largest skin component, a head box, enclosed dark blobs paired by consistency) stands when no cascade is loaded or no face is found; on real stills it read blonde hair and sand as skin and light irises as not dark, which is why the cascade route is primary. Either route only SEEDS each eye: since AT44 (2026-09-18) the canthi are the extremes of the fissure GROWN from the seed's pupil by local darkness out to the face's side and the other eye (pm_eye_fissure), and a fissure that reaches that window's side is refused by name (PM_PF_PINNED) -- the first ruler's canthi were a band's edges on every render. Sides follow the IMAGE: the eye on the image left is the subject's RIGHT eye; a mirrored still swaps them (gate-proven). THE MOUTH (AT44) is five landmarks -- labrale superius, stomion, labrale inferius, both cheilions -- found from the SEAM (a walk from the midline's deepest valley and the window's strongest valley path, each verified by the vermilion's hue on both sides) with every refusal named (PM_MW_*); pm_mouth_anchored runs it on canthi supplied from outside. THE REFEREE (AT31): pm_referee reads the OUTSIDE oracle rows (knowledge/refintake/<slug>.oracle: MediaPipe run outside the estate over the mirrored bytes, pixels x10) and scores every measured canthus as permil of the oracle's outer-canthal span (the field's NME shape), printing per still FOUND | PLACED-OFF | UNMEASURED | UNJUDGED with a partition that sums; since AT44 it scores the mouth too, both as the ruler places it and anchored on the oracle's canthi, each with its partition. LIB, no main. Composes nx_skinsample_lib (decoder, skin mask, colour helpers, fixed-point angle), nx_facefind_lib (boxes), nx_twincard_lib (card). license_tier: ORIGINAL No hw writes (Rule 26).