isp op• Data kinds: image2d → image2d
• Call: import fullseye as fs; fs.ledger.raw_dead_pixel_mask(raw, threshold=0.1) (to call the implementation directly, import gfx2d; gfx2d.raw_dead_pixel_mask(raw, threshold=0.1); from the registry, opsgfx2d.get("raw_dead_pixel_mask"))
Where the dead (stuck / hot) pixels are: `1.0 at a pixel that differs from **every one** of its 8 same-colour neighbours by more than *threshold* in the same direction, 0.0 elsewhere. (H, W)` float64.
"Every neighbour, same sign" is what separates a defect from an edge: at an
edge some same-colour neighbours are on the pixel's own side. The rule is
the one openISP documents for its DPC stage; here it is pattern-free
because same-colour neighbours are simply the pixels two steps away.
Ground truth: dead pixels planted in a smooth frame are recovered exactly
(no misses, no false alarms) while a hard edge produces none.
Raises `ValueError: bad *raw* or a *threshold* outside (0, 1]`.
• 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.
• raw_to_display_isp — py -3.11 examples/raw_to_display_isp.py
image2d as input)shadow_cast_2d · dither · raw_black_level · raw_dead_pixel_correct · lens_shading_gain · lens_shading_correct · raw_apply_gains · raw_demosaic_bilinear
isp)raw_black_level · raw_dead_pixel_correct · lens_shading_gain · lens_shading_correct · awb_gains · rgb_apply_gains · raw_apply_gains · raw_demosaic_bilinear
*Provenance: gfx2d.py — GFX2D 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.