isp opimage2d → rgbimport fullseye as fs; fs.ledger.raw_demosaic_bilinear(raw, pattern='RGGB') (実装を直接呼ぶなら import gfx2d; gfx2d.raw_demosaic_bilinear(raw, pattern='RGGB')、台帳から引くなら opsgfx2d.get("raw_demosaic_bilinear"))Bayer mosaic → (H, W, 3) RGB by bilinear interpolation, in NumPy.
Red and blue occupy one pixel in four, so a missing value is the mean of
the measured neighbours ([[1,2,1],[2,4,2],[1,2,1]]/4 on the masked
plane); green occupies two in four ([[0,1,0],[1,4,1],[0,1,0]]/4). The
border mirrors the mosaic two pixels out with a non-duplicating
reflection, which keeps the 2x2 phase, so a uniform field is exact up to the
edge. This is the same estimate the OpenCV bridge cfa_to_rgb makes with
cv2.COLOR_Bayer*2RGB, without the 8-bit round trip and without OpenCV.
Ground truth: three affine planes mosaicked and demosaicked come back to
1e-12 away from the border (a bilinear estimate of an affine field is the
field). Bilinear is the textbook baseline: it blurs colour edges into
zipper artefacts; edge-directed methods are not provided here.
Raises ValueError: bad raw or pattern.
py -3.11 examples/poc_pixel_shift.pypy -3.11 examples/raw_to_display_isp.pyrgb を入力に取れる)srgb_to_linear · linear_to_srgb · blend_mode · light_mask · normal_map_decode · bloom · vignette · chromatic_aberration
isp)raw_black_level · raw_dead_pixel_mask · raw_dead_pixel_correct · lens_shading_gain · lens_shading_correct · awb_gains · rgb_apply_gains · raw_apply_gains
Provenance: gfx2d.py — GFX2D 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.