nx_color_v2.nx

buildroot/runtime/nx_color_v2.nx

13638 B376 linesdepth 5pulls 6 transitivereach 31 importersview sourcekind librarytopic color

docs dependencies structs consts functions

about

nx_color_v2.nx -- full color-space transforms (V1 of vision rollout). Per VISION_FROM_BITS_UP doc, V1 (color) closes ~50% of the gap to classical scene understanding. Ships: - RGB -> HSV (Hue 0..360 degrees, Sat/Val 0..255) - RGB -> YCbCr (Rec.601 broadcast standard) - K-means palette extraction (3D RGB clustering) - Skin-mask via Kovac 2003 fixed-rule YCbCr classifier - Dominant-channel detection All i64. Q-format scaling for fractional intermediates. No f64. genealogy_id: smith_1978_hsv + itu_r_bt601_ycbcr + kovac_2003_skin + lloyd_1957_kmeans lineage_id: color_space_transform + fixed_point_arithmetic axioms: NX_AX_ALG_DISTRIBUTIVITY (linear transforms compose)

dependencies 4 imports · 10 importers

imports: syscalls.nxnx_axioms.nxnx_i128.nxnx_image.nx

imported by: nx_aesthetics.nxnx_arm_count.nxnx_charjudge_census.nxnx_color_v2_test.nxnx_garment_lib.nxnx_mise_en_scene.nxnx_multi_body.nxnx_outfit_coverage.nxnx_region.nxnx_vision_pipeline_test.nx

structs

45	struct HSVColor
110	struct YCbCrColor
260	struct Palette

consts

155	const NX_SKIN_Y_MIN: i64 = 80
156	const NX_SKIN_CB_LO: i64 = 85
157	const NX_SKIN_CB_HI: i64 = 135
158	const NX_SKIN_CR_LO: i64 = 135
159	const NX_SKIN_CR_HI: i64 = 180
192	const NX_SKIN_LOCUS_CB_LO: i64 = 77
193	const NX_SKIN_LOCUS_CB_HI: i64 = 127
194	const NX_SKIN_LOCUS_CR_LO: i64 = 133
195	const NX_SKIN_LOCUS_CR_HI: i64 = 173
258	const NX_COLOR_KMEANS_MAX_K: i64 = 16
367	const NX_COLOR_GRAY_THRESHOLD: i64 = 20

functions

51	func nx_color_max3(a: i64, b: i64, c: i64) -> i64 called by 2: nx_color_rgb_to_hsv nx_color_dominant_channel
58	func nx_color_min3(a: i64, b: i64, c: i64) -> i64 called by 2: nx_color_rgb_to_hsv nx_color_dominant_channel
65	func nx_color_rgb_to_hsv(r: i64, g: i64, b: i64, out: *HSVColor) -> i64 called by 3: nx_aesthetics_color_harmony main main calls 2: nx_color_max3 nx_color_min3
116	func nx_color_rgb_to_ycbcr(r: i64, g: i64, b: i64, out: *YCbCrColor) -> i64 called by 4: nx_color_kovac_skin_pixel nx_color_skin_flags_at main main
171	func nx_color_skin_chroma_ycc(cb: i64, cr: i64) -> i64 called by 2: nx_color_skin_kovac_ycc nx_color_skin_flags_at
181	func nx_color_skin_kovac_ycc(y: i64, cb: i64, cr: i64) -> i64 called by 2: nx_color_kovac_skin_pixel nx_color_skin_flags_at calls 1: nx_color_skin_chroma_ycc
197	func nx_color_skin_locus_ycc(cb: i64, cr: i64) -> i64 called by 1: nx_color_skin_flags_at
205	func nx_color_kovac_skin_pixel(r: i64, g: i64, b: i64) -> i64 called by 7: nx_color_skin_mask main gm_candidate_mask_noskin gm_hue_modes_mask gm_segment_dilate gm_hue_modes+1 calls 2: nx_color_rgb_to_ycbcr nx_color_skin_kovac_ycc
219	func nx_color_skin_flags_at(r: i64, g: i64, b: i64, ycc: *YCbCrColor) -> i64 called by 1: cjp_lens calls 4: nx_color_rgb_to_ycbcr nx_color_skin_kovac_ycc nx_color_skin_chroma_ycc nx_color_skin_locus_ycc
229	func nx_color_skin_mask(rgb: Image) -> Image called by 7: nx_arm_count_compute main nx_mise_en_scene_compute nx_multi_body_compute nx_outfit_coverage_compute nx_region_segment+1 calls 4: nx_image_alloc nx_image_get nx_color_kovac_skin_pixel nx_image_set
268	func nx_palette_alloc(k: i64) -> *Palette called by 1: nx_color_kmeans_palette
280	func nx_color_dist_sq(r1: i64, g1: i64, b1: i64, called by 1: nx_color_kmeans_palette
288	func nx_color_kmeans_palette(rgb: Image, k: i64, max_iter: i64) -> Palette called by 2: main main calls 3: nx_palette_alloc nx_image_get nx_color_dist_sq
369	func nx_color_dominant_channel(r: i64, g: i64, b: i64) -> i64 called by 2: main main calls 2: nx_color_max3 nx_color_min3