nx_likeness_gate.nx

nx_likeness_gate.nx -- the referee for nx_likeness_lib (aesthetictwin AT45, 2026-09-18). On the real reference set (four clothed, frontal Diora Baird stills, aligned from the outside oracle rows) and the real renders the operator judged: the band is derived from at least three same-person pairs and the canvas from the smallest reference eye span; a reference against itself reads zero on every axis; the anchor still resampled into a rolled, scaled frame (a planted control whose landmarks are carried by the same similarity) reads INSIDE with its geometry within two canvas pixels, and its mouth landmarks shifted by a tenth of the eye span read the shift back (the geometry axis can fire); the canon face and a seed render -- renders of nobody in particular -- read OUTSIDE the band; the two renders the operator rejected as not her (diora_baird_close.png, diora_baird_threequarter.png) read OUTSIDE, and they read it MEASURED, not as an absence of alignment; each score's partition sums; the lk_score door agrees with the in-process path. Values are printed with gv_kv. Fixtures live under /tmp/nx_likeness_gate/ (created at setup); the reference stills, the oracle rows and the renders are read from the estate's own paths and are PRECONDITIONS (SKIP when absent, never RED). THE FIRST RUN'S ACCEPT RULE WAS STRICTER AND IT FAILED, WHICH IS RECORDED HERE RATHER THAN TUNED AWAY: the renders were required to read OUTSIDE on the structure axes. Measured 2026-09-18 on this set they do not -- the same person's own photographs spread more on every classical structure ruler than a render differs from a photograph at an 84 px canvas (struct_l1 band 2891 against renders 2128..2759; shading 846 against 441..595; texture layout 644 against 559..654; texture energy 52 against 6..12) -- and the rejections rest on skin chroma (a*) and, for the three-quarter render, on texture layout. That separation count is published as a value (structure_family_separates_renders_of_4) and is the open accept bar of the structure contender queued on the board. license_tier: ORIGINAL No hw writes (Rule 26).