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lightcraft/xtask
smposaraandClaude Opus 5.5 26df1c5cdf LR-IMP-CAMERA-COVERAGE: verify Canon EOS RP CR3 pixel for pixel
Four CC0 EOS RP samples from raw.pixls.us (lossless RAW and C-RAW, full
frame and 1.6x crop mode) now have exact full-sensor regressions against
the DNGLab 0.8.0 black-box oracle (Windows binary, checked first against
the documented M50 RAW hash). The decoder already matched; no decoder
change was needed. Crop mode is a single 4032x2656 tile, full frame two
3192-wide tiles.

docs/cr3.md also records that the white level is Canon's specular white,
which at the -1/3-stop ISOs (e.g. 11062 at ISO 5000) is well below the
sensor's saturation point.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-13 08:59:30 +02:00
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