polish op• Data kinds: image2d × scalar × scalar → table
• Call: import fullseye as fs; fs.ledger.band_width_profile(image, threshold: 'float', res: 'float', along: 'str' = 'x') -> 'dict' (to call the implementation directly, import polish; polish.band_width_profile(image, threshold: 'float', res: 'float', along: 'str' = 'x') -> 'dict'; from the registry, opsdrive.get("band_width_profile"))
Reads, with subpixel precision, the width of the band wiped by a straight stroke (direction along) on each line perpendicular to the band: the first and last threshold crossings are found by linear interpolation with the neighboring pixel, and their difference × res is the width. Returns widths (per line; NaN for unreadable lines), centres (band center positions [m], in map coordinates), valid, median. Assumes 1 band (several bands give the width between the outermost edges). Raises ValueError: image checks, res ≤ 0, along not x / y, non-finite threshold.
• 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.
• poc_polish_wipe_measure — py -3.11 examples/poc_polish_wipe_measure.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
polish)preston_pressure_kernel · preston_removal_map · preston_track_profile · wipe_band_width · raster_wipe_area · coat_image · coat_thickness_from_image · wipe_coverage
*Provenance: polish.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.