watervision opimage2d → tableimport fullseye as fs; fs.ledger.caustic_floor_segmentation(irradiance, method='otsu') -> 'dict' (実装を直接呼ぶなら import watervision; watervision.caustic_floor_segmentation(irradiance, method='otsu') -> 'dict'、台帳から引くなら opsoptics.get("caustic_floor_segmentation"))Segment the caustic lines of a floor irradiance image -> dict (mask, threshold, line period).
The bright web of caustics on a pool floor is what a crack detector mistakes for cracks. method="otsu": the finite
values are normalised by their mean and split into two classes at the Otsu threshold (256 bins); the mask is the bright
class. method="fold": ridge detection by curvature: the smaller eigenvalue of the Hessian of the Gaussian-smoothed
irradiance (sigma 1 pixel) is the curvature across a line; where it is strongly negative (above the Otsu threshold of its negative part)
and the irradiance is above its mean, the pixel is on a caustic ridge. inf pixels (the folds of the wavefront method of
:func:caustic_irradiance) are caustic by definition and are always in the mask. The table has mask (bool), threshold,
fraction (of pixels in the mask), period_px_x / period_px_y (the fundamental period in pixels of the column and
row profiles of the mask, from the lowest strong spectral peak refined by a parabola; NaN when the profile is flat),
dominant_axis (“x”, “y” or “none”: the axis whose profile of the mask varies most) and n_inf. NaN, negative values, an
image under 8 x 8 and a constant image (no caustic to find) are refused.
optics の全 op は入力を検証してから計算する(黙って通さない):
_mm / _um / _deg / _mrad。mm と µm の取り違えは crash ではなく「もっともらしく間違った答え」なので、名前で防ぐ。大きさから単位を推測する処理は一切しない。ValueError — float('50') は成功してしまうため、未パースの設定値が長さとして通り抜ける(実測: thin_lens('50', '200') がもっともらしい 66.667 mm を返していた)。bool も True == 1 の暗黙昇格として拒否。ValueError(実数枠のみ。虚部の無言切り捨て・マスク剥がしを拒否)。NaN/Inf は全入力で ValueError。depth_of_field の過焦点距離以遠の far_mm = inf(それが過焦点距離の定義)と gaussian_beam のウエストでの wavefront_radius_mm = inf(平面波面の曲率半径)。どちらも有限の相棒(far_is_infinite / curvature_per_mm)を併せて返す。それ以外の無言 NaN/Inf は内部で検出して ValueError —「float64 が溢れた」と「答えが無限大」は別の主張なので、後者の顔で前者を返さない。optics.MAX_GRID(4096)、供給された場/PSF/開口は optics.MAX_FIELD_ELEMENTS(2^24)、ABCD 素子列は optics.MAX_SYSTEM_ELEMENTS(1024)、Zernike は MAX_ZERNIKE_TERMS(512)/ MAX_ZERNIKE_ORDER(40)/ MAX_ZERNIKE_BASIS(2^25)。小さな引数から巨大な内部確保が起きる経路(実測: n_max=40 × 4096² で 108 GB)を fail-closed で塞ぐ。| 物理的に不可能な状態も拒否: 偏光度 > 1 の Stokes ベクトル、負の透過率、負の強度、n- | m | が奇数などの不正な Zernike 添字。 |
py -3.11 examples/poc_water_inspection_images.pytable を入力に取れる)abcd_matrix · wavefront_stats · sfr_from_edge · paraxial_trace · seidel_coefficients · spot_stats · tolerance_analysis · wavefront_from_opd
watervision)caustic_irradiance · bottle_image · fill_level_from_image · wet_surface_appearance · wet_dry_inspection_pair · underwater_inspection_image
Provenance: watervision.py — OPTICS operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.