nx_uiq_visual.nx

nx_uiq_visual.nx -- CLI: sovereign visual-render metrics over a real rendered PNG (experiential). The deterministic-pixel guardrails half of the perceptual axis; catches the marker-vs-rendered gap (a structurally-clean page that renders BLANK). Render fidelity = the input PNG's property. usage: nx_uiq_visual --kat (self-test: encode->decode->analyze, blank/rich/band oracle) nx_uiq_visual analyze <png> (JSON: w/h/ink_permille/colors/mean_lum/content_extent/verdict) license_tier: ORIGINAL expect_exit: 0 genealogy: experiential visual; composes nx_visual_diff + nx_png_decoder