Brandon ThomasandClaude Opus 5.5 543fdde41e M13.1: lightcraft-merge crate — HDR merge, panorama stitching core ...

New L3 crate `crates/merge` (no UI deps), clean-room from published papers:
- features: Harris/MOPS-style oriented patch descriptors, ANMS, ratio-test matching
- ransac: normalised DLT homographies, similarity/translation, adaptive RANSAC
- hdr: brightness ordering, auto-align (model selection), robust exposure-ratio
  estimation chained to the reference, saturation-aware weighted radiance merge,
  deghost None/Low/Medium/High with feathered masks + overlay
- pano: pairwise matching, Brown–Lowe verification, focal from homographies,
  rotation+focal bundle adjustment (LM), straightening, spherical/cylindrical/
  perspective + auto, gain compensation, max-weight seams, multi-band blending
  in log space, boundary warp, auto crop, fill edges (push–pull)
- output: LinearRaw DNG carrying source colour tags; raw crate gains Deflate
  tiles (16/32-bit float with FP predictor, 16-bit int with predictor 2)

Tests: synthetic brackets (alignment < 0.3 px, EV < 0.02, radiance error
noise-limited, ghost removal) and synthetic panoramas (relative rotations
< 0.1°, focal < 1 %, error vs ground truth, seam test).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-01 10:06:00 -04:00

..

examples

M11.3: Panasonic RW2 decoding (packed 12/14-bit)

2026-10-01 00:11:34 -04:00

src

M13.1: lightcraft-merge crate — HDR merge, panorama stitching core

2026-10-01 10:06:00 -04:00

tests

M13.1: lightcraft-merge crate — HDR merge, panorama stitching core

2026-10-01 10:06:00 -04:00

Cargo.toml

M3.2-M3.6: lightcraft-raw DNG, LJ92, demosaic, highlights, DNG colour

2026-09-30 11:33:19 -04:00