radialmonsterandClaude Opus 5.5 1ba0421a85 LR-IMP-FORMATS: RW2 format 8: decode each 2×2 cell column by column ...

Raw format 8 codes a cell top-left, bottom-left, top-right, bottom-right.
decode_strip placed the values in row order, which put the two green
samples of every RGGB cell on each other's sites: flat areas were right,
but every edge got a one-pixel colour zipper. Measured on a G9 II and the
corpus GH6, S5 II and S9: the Gb plane sat at (+0.5, -0.5) half-res cells
from Gr instead of the Bayer (-0.5, +0.5); with this change all four match.

The test encoder used the same order, so the round trip passed either way;
a new known-answer test hand-codes one cell and checks where it lands.

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

2026-10-07 21:58:09 -04:00

..

examples

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

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

src

LR-IMP-FORMATS: RW2 format 8: decode each 2×2 cell column by column

2026-10-07 21:58:09 -04:00

tests

Merge main into #213 (keep main's Windows test fixes from #207; parity row combines RW2 and the downsized ARW)

2026-10-07 20:53:25 -04:00

Cargo.toml

LR-IMP-FORMATS: decode lossy (DCT JPEG) DNG — Smart Previews and lossy DNG exports

2026-10-02 20:51:15 -04:00