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Author SHA1 Message Date
Brandon ThomasandClaude Opus 5.5 bc2cda97cf M13.2: Photo Merge commands, dialog with live preview, CLI 
- engine: `merge.hdr`, `merge.panorama`, `merge.hdrPanorama` (bracket size from
  EXIF); MergeJob (Send) with progress/cancel, preview renders through the develop
  pipeline (deghost overlay, auto-crop frame); finish writes <name>-HDR/-Pano.dng
  next to the first source, imports, selects, applies Auto Settings / auto crop
- ui: Photo Merge dialog (HDR / Panorama / HDR Panorama) with live preview on a
  worker thread, background final merge with progress toast; context menu and
  Ctrl+H / Ctrl+M (Ctrl now means the physical Control key on macOS)
- cli: `merge hdr|panorama|hdr-panorama`, `synth-merge` for synthetic inputs
- merge::synth: procedural brackets (DNG) and panorama views; docs/merge.md

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
 2026-10-01 10:30:03 -04:00
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