lightcraft

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Pierre-Edouard HonnetandClaude Opus 5.5 c806debada LR-IMP-FORMATS: CRX high-frequency band width from the tile geometry (#899 )

The decoder tried each high-frequency band at its synthesis width and up to
two more columns, keeping the first width whose entropy stream ended exactly.
Two widths can both do that with different coefficients (#899).

Measured on every C-RAW plane in cr3_corpus.rs (CC0 raw.pixls.us files):
each band decodes at exactly one width. A tile with a neighbour on its right
codes bands 5 and 8 (the vertical high-pass of the level-2 and level-1
low-pass columns) at an odd width, so an even band gains one unused column;
no other band is extended. The width now comes from that rule, and a stream
that does not fit it is corrupt (the CR3 falls back to its preview).

All corpus sensor hashes are unchanged. The property-test encoder now codes
bands 5 and 8 the same way. Middle tiles (three or more C-RAW tiles) follow
the left-tile rule; no public file has one.

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

2026-10-15 20:12:46 +02:00

body_corpus.rs

LR-IMP-CAMERA-COVERAGE: verify 117 Nikon and Fujifilm bodies on CC0 files

2026-10-12 04:28:43 +11:00

canon_pentax_corpus.rs

LR-IMP-CAMERA-COVERAGE: verify 97 Canon CR2, Pentax and Ricoh models on CC0 files

2026-10-12 05:27:26 +11:00

corpus.rs

Merge PR #1135 (rebased)

2026-10-15 00:53:45 -04:00

coverage_sweep_corpus.rs

LR-IMP-CAMERA-COVERAGE: verify 30 public camera models