nx_segmenter_classical.nx

nx_segmenter_classical.nx -- classical-CV connected-component segmenter. CAPABILITY_COMPLETENESS: PARTIAL MISSING_CAPABILITIES: - face landmark detection (eye / nose / mouth keypoints): queued (needs trained classifier or Haar cascade); blocks per-region phrasing like "blob 0 is the face" - hand-specific segmentation (palm + fingers separated from wrist): nx_segmenter_classical returns generic skin blobs; downstream nx_hand_skeleton (queued) would post-process - anatomical region naming (wrist / inside-elbow / etc.): queued; needs pose estimator or landmark detector COVERED: - Generic binary-mask connected-component labeling (4-connectivity, union-find for label merging in 2 passes) - Per-blob bounding box + pixel count - Skin-mask integration: caller may use nx_color_skin_mask output as input, or any other binary mask - Sealed-enum blob-classification by shape proxies (queued as v2; v1 returns just geometry) This primitive unblocks region-based tier-axis graders by providing the SEGMENTATION INPUT they need. After this ships, the v0 composer can promote axes from PENDING_SEGMENTATION to OK for any region the grader can be invoked with explicit bounding-box bounds (vein-signal in a wrist bbox; subsurface in a fingertip bbox; etc.). genealogy_id: rosenfeld_1966_connected_components lineage_id: nx_segmenter_classical_v1