world_parts_with_shadow — SEGMENTATION `world` op

• Data kinds: none → table (an op determined by its arguments alone — it takes no image or data input)

• Call: import fullseye as fs; fs.ledger.world_parts_with_shadow(seed: 'int' = 0, *, size=(200, 260), n_parts: 'int' = 3, light_angle: 'float' = 35.0, shadow_length: 'float' = 9.0, noise: 'float' = 0.02) -> 'Dict[str, object]' (to call the implementation directly, import segworld; segworld.world_parts_with_shadow(seed: 'int' = 0, *, size=(200, 260), n_parts: 'int' = 3, light_angle: 'float' = 35.0, shadow_length: 'float' = 9.0, noise: 'float' = 0.02) -> 'Dict[str, object]'; from the registry, opssegmentation.get("world_parts_with_shadow"))

Usage

World of industrial parts (rotated rectangles with circular holes) with oblique-lighting shadows, facet shading and highlights (world_parts_with_shadow).

> The detailed description below is the original text — the summary and the headings are translated.

光は `light_angle(度、画像の x 軸から y 軸へ)の向きに差す平行光。影 = 部品のマスクを光の向きに shadow_length`

だけずらした集合から部品を除いた画素(穴は光を通す)。部品の面は光に向く側が明るく、遠い側は影と同じくらい暗い

(閾値が欺かれる理由)。ハイライトは光に向く側の縁の近くのガウス。

返り値: `image、labels(部品 1..n)、shadow(bool)、truth = {n_parts、parts`(center, w, h, angle, holes)、

`areas(w h − Σ π r²)、shadow_offset (dy, dx)、shadow_area(測った画素数)、light_angle`}。

Detailed usage guide

• halcon_segmentation family guide

Background guides (the physics and conventions behind this op)

• segmentation_scoring_and_worlds — 分割の採点と真値つき合成世界 — どの物差しがどの壊れ方に盲目か

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• poc_active_contours — py -3.11 examples/poc_active_contours.py

• poc_graph_hierarchy_segmentation — py -3.11 examples/poc_graph_hierarchy_segmentation.py

• poc_segmentation_gauntlet — py -3.11 examples/poc_segmentation_gauntlet.py

Ops the type connects to (they accept `table` as input)

class_ndim_norm

Same category (`world`)

world_blobs_touching · world_grains_voronoi · world_texture_regions · world_gradient_illumination · world_thin_structures · lens_area · voronoi_cells

*Provenance: segworld.py — SEGMENTATION operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

world_parts_with_shadow — SEGMENTATION world op