- lightcraft-raw: RawImage::develop_binned(k) — k×k superpixel binning of the CFA
(Bayer k even, X-Trans k multiple of 3), black/white normalised row by row, default
crop only, clipping preserved for highlight reconstruction. 2560 px previews of a
24 MP raw bin 2×, thumbnails 4–8×; exports / 1:1 still demosaic (AHD) at full size.
- highlight::reconstruct and its pyramid fill are rayon-parallel (bit-exact).
- X-Trans directional demosaic: precomputed per-phase neighbour offsets and no
reflection in the interior, no per-pixel allocation (bit-exact, tested against the
reference formulation): 2.9 s → 0.75 s CPU at 24 MP.
- files::load_bytes runs on a rayon worker so its short parallel loops don't each
wait for the pool to wake (dominant cost on a loaded machine); LIGHTCRAFT_PROFILE
prints per-stage source timings; files::bin_factor picks the block size.
- render_bench ONLY=source: per-file decode / normalise / demosaic / binning / load.
- Fix: u64 overflow on hostile IFD sizes in DNG/ARW/NEF raw-IFD selection (proptest).
load_bytes(2560) CPU time, ARW a7 III 24 MP: 2347 → 240 ms; X-T20: 3120 → 1220 ms.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- embedded_preview: CR3 PRVW/THMB boxes (plus RAF, RW2, ORF, PEF from the
format commits); stops at the first valid box of each kind
- engine: raw variants that report Unsupported are probed and shown from
their embedded JPEG (orientation from the JPEG or the raw), not an error
- crates/raw/tests/corpus.rs: every corpus/raw file is recognised, has a
JPEG preview (DNG optional) and decodes or is a known-unsupported
variant; prints decode timings
- xtask corpus --download: 37 CC0 raw.pixls.us samples (matched by SHA-256)
- ROADMAP/crate docs: format coverage, NEF Huffman / RW2 format 4 /
compressed ORF+RAF gaps, neutral colour-matrix fallback
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
16-bit LE words (12-bit-in-top-bits detected and shifted), 12-bit rows
of LE 32-bit words read MSB-first (black-box), maker-note
ImageProcessing crop, BlackLevel2, WB_RBLevels for old- and new-style
notes, CFA phase from the data (GRBG/RGGB), CameraSettings preview.
Compressed ORF reports Unsupported (documented gap).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Huffman table from maker note 0x0220 (codes/lengths, black-box layout),
T.81 difference categories, same-colour horizontal prediction with
per-row-parity vertical seeds; BlackPoint, WB levels, maker-note image
area or dark-column trimming. Unit round-trip test with our own table.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Black-box derived layout: 0x4000-byte chunks stored rotated by 0x1ff8,
16-byte LE blocks read LSB-first (10x12-bit or 9x14-bit samples).
Sensor borders, CFA code, per-channel black, linearity limit, WB levels,
ISO; JpgFromRaw preview via a generic undefined-tag JPEG candidate.
The quantised raw format 4 reports Unsupported (documented gap).
Adds a rawdump debug example.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
RAF header/record parsing, raw IFD (0xf000) with 16-bit, 12-bit LSB and
32-bit-word MSB packings found by black-box analysis of CC0 samples,
X-Trans layout (reversed record, anchored at 0,0), crop, black levels,
WB_GRB levels, metadata and preview from the embedded JPEG. Compressed
RAF reports Unsupported. Colour uses the documented neutral fallback.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
16-bit word and 12-bit MSB-packed uncompressed NEF, maker-note black
levels and WB_RBLevels, masked trailing column trim, robust white
estimate ignoring 0xFFFF padding. Huffman-compressed NEF is reported as
unsupported (no clean-room description available).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
ARW2 implemented from Dietz, EI 2016 (128-bit blocks, interleaved 16-pixel
sets, 7-bit scaled deltas, 5-segment tone curve from 0x7010); black/white/
WB/CFA/crop from the raw IFD's documented Sony tags. Verified visually on
A7 III / A7 IV samples; ~500-850 MP/s row-parallel decode.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
IFD#3 lossless JPEG with 0xc640 slice reassembly, SensorInfo borders,
masked-column black levels per CFA position, saturation-plateau white,
as-shot WB from ColorBalance. Verified bit-identical to Adobe's DNG of
the same 5D Mark III frame. sRAW/mRAW reported as unsupported.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Classic + BigTIFF, both byte orders, all field types, SubIFDs and Exif/GPS/
Interop pointer IFDs, strips/tiles layout, maker-note offset-base helpers,
IFD writer; hardened against malformed input (proptests). Placeholder
manifests for lightcraft-meta and lightcraft-raw.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Brandon Thomas