LR-IMP-CAMERA-COVERAGE: Sony ILCE-7CR samples in the corpus

Three CC0 raw.pixls.us files of one ILCE-7CR (61 MP) scene: lossless
compressed L and M (subsampled YCbCr) and compressed ARW2. A raw corpus
test pins model, colour-filter layout, black level, white level, as-shot
gains and default crop, and checks that the lossless and compressed
mosaics agree inside the crop (green block correlation 0.9976). An engine
corpus test checks each gets a fitted camera look, not the neutral
fallback. All nine public codings decode and fit (mean dE76 1.59 against
their camera JPEGs).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Alex Chambers 2026-10-09 15:59:07 +02:00
parent 88ea1a804b
commit ea080e58bd
4 changed files with 105 additions and 1 deletions

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@ -1199,6 +1199,30 @@ mod tests {
assert!(info.relative_wb && info.as_shot_temp == 6500.0 && info.as_shot_tint == 0.0);
}
/// The public ILCE-7CR samples (61 MP; skipped without the corpus): lossless compressed L and M and compressed
/// ARW2 all get a look fitted to their own JPEG, not the neutral fallback.
#[test]
fn corpus_a7cr_codings_get_a_camera_look() {
let dir = std::env::var_os("LIGHTCRAFT_CORPUS")
.map(std::path::PathBuf::from)
.unwrap_or_else(|| std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("../../corpus"))
.join("raw");
for name in ["arw-sony-a7cr-lossless-l.arw", "arw-sony-a7cr-lossless-m.arw", "arw-sony-a7cr-compressed.arw"] {
let bytes = match std::fs::read(dir.join(name)) {
Ok(bytes) => bytes,
Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
eprintln!("skip: {name} absent");
continue;
}
Err(e) => panic!("{name}: {e}"),
};
let (img, info) = crate::files::load_bytes(&bytes, 400).unwrap();
assert_eq!((img.width, img.height), (400, 267), "{name}: framed in the default crop");
assert!(info.camera_tone.is_some(), "{name}: no camera look fitted");
assert!(info.relative_wb && info.as_shot_temp == 6500.0 && info.as_shot_tint == 0.0, "{name}");
}
}
/// A public DC-FZ1000 II RW2 shot at 4:3 on its 3:2 sensor (skipped without the corpus): the default crop is 4:3
/// while the embedded JPEG shows the whole sensor; the look is still fitted, against the matching part of it.
#[test]

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@ -357,6 +357,69 @@ fn corpus_sony_pre2017_colour_metadata() {
eprintln!("pre-2017 Sony ARW colour metadata checked on {seen} files");
}
/// Sony ILCE-7CR (61 MP), three of the camera's raw codings of one scene on raw.pixls.us: lossless compressed L
/// (LJ92 tiles of 2×2 cells), lossless compressed M (subsampled YCbCr, already white-balanced) and compressed
/// (ARW2). Expected values: the files' own black level and default crop, and the as-shot gains of the camera's
/// colour-temperature setting.
#[test]
fn corpus_sony_a7cr_codings() {
let dir = corpus_root().join("raw");
// (file, colour-filter layout, as-shot R and B gains, default crop x, y, width, height)
let cases = [
("arw-sony-a7cr-lossless-l.arw", Some("RGGB"), [2.625, 1.598], (32, 20, 9504, 6336)),
("arw-sony-a7cr-compressed.arw", Some("RGGB"), [2.625, 1.598], (32, 20, 9504, 6336)),
("arw-sony-a7cr-lossless-m.arw", None, [1.0, 1.0], (20, 12, 6240, 4160)),
];
let mut decoded = Vec::new();
for (name, cfa, [r, b], crop) in cases {
let bytes = match std::fs::read(dir.join(name)) {
Ok(bytes) => bytes,
Err(e) if e.kind() == std::io::ErrorKind::NotFound => {
eprintln!("skip: {name} absent");
continue;
}
Err(e) => panic!("{name}: {e}"),
};
let img = decode(&bytes).unwrap_or_else(|e| panic!("{name}: {e}"));
assert_eq!(img.metadata.model.as_deref(), Some("ILCE-7CR"), "{name}: model");
assert_eq!(img.cfa.as_ref().map(|c| c.name()).as_deref(), cfa, "{name}: colour-filter layout");
assert_eq!(img.black.mean(), 512.0, "{name}: black level");
assert!(img.white_at(0) > 15000.0, "{name}: white {} (14-bit scale)", img.white_at(0));
let wb = img.wb_multipliers.unwrap_or_else(|| panic!("{name}: no as-shot white balance"));
assert!((wb[0] - r).abs() < 0.01 && wb[1] == 1.0 && (wb[2] - b).abs() < 0.01, "{name}: white balance {wb:?}");
assert_eq!((img.crop.x, img.crop.y, img.crop.width, img.crop.height), crop, "{name}: default crop");
decoded.push((name, img));
}
// The lossless and compressed codings are two exposures of the same scene with the same framing: inside the
// default crop their mosaics must agree (up to the small differences between two exposures).
let crop_means = |img: &lightcraft_raw::RawImage| {
let lightcraft_raw::RawData::U16(d) = &img.data else { panic!("float data") };
let (w, c, b) = (img.width, img.crop, 32);
let mut out = Vec::new();
for by in 0..c.height / b {
for bx in 0..c.width / b {
let (x0, y0) = ((c.x + bx * b) & !1, (c.y + by * b) & !1);
let (mut s, mut n) = (0f64, 0f64);
for y in y0..y0 + b {
for x in (x0..x0 + b).step_by(2) {
s += d[y * w + x + 1 - (y & 1)] as f64;
n += 1.0;
}
}
out.push(s / n);
}
}
out
};
let bayer: Vec<_> = decoded.iter().filter(|(_, img)| img.cfa.is_some()).collect();
if let [(a_name, a), (b_name, b)] = bayer.as_slice() {
let r = correlation(&crop_means(a), &crop_means(b));
eprintln!("ILCE-7CR {a_name} vs {b_name}: green block correlation {r:.4}");
assert!(r > 0.98, "correlation {r}");
}
eprintln!("ILCE-7CR codings checked on {} files", decoded.len());
}
/// The embedded JPEG as linear RGB, reduced to `gw × gh` cells.
fn jpeg_cells(jpeg: &[u8], gw: usize, gh: usize) -> Vec<[f64; 3]> {
use zune_core::{bytestream::ZCursor, colorspace::ColorSpace, options::DecoderOptions};

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@ -144,7 +144,7 @@ under the UI command that wraps it (a no-op error); the UI command now wins.
| LR-IMP-SIDECAR-SPLIT | Separate XMP sidecar variants | P2 | ⬜ | `cmd:library.xmpPreferences` | sidecar naming option exists (stem/full), no split sidecars |
| LR-IMP-FORMATS | Supported formats | P0 | 🟡 | `crates/codecs/src/lib.rs`, `crates/raw/src/lib.rs`, `crates/raw/src/jxl.rs` | JPEG, PNG, TIFF (1- to 64-bit integer, 16- to 64-bit float, incl. bilevel and CCITT fax), WebP, JXL, PSD, GIF, BMP; DNG (incl. lossy / Smart Preview DNG and DNG 1.7 JPEG XL tiles/strips: lossless ones decode bit-exactly on synthetic CFA and LinearRaw files, lossy ones are restored to the declared linear primaries without clipping or gamut mapping, checked on one real file with 108 lossy tiles, and any tile that fails to decode makes the file preview-only; a single-chunk JPEG XL preview IFD is offered as the embedded preview), CR2 (colour-filter layout from the file's `CR2CFAPattern` tag, issue #85), ARW (pre-2017 bodies: white balance and black level from enciphered maker-note / `SR2SubIFD` data, issue #148; downsized Sony lossless YCbCr 4:2:0 / 4:2:2 tiles decoded to linear RGB, verified on private ILCE-7M4 3:2 & 4:3 examples including 16-bit full-resolution export), NEF (uncompressed, lossless and lossy compressed 12/14-bit, `crates/raw/src/vendor/nefc.rs`), RAF (uncompressed, lossless/lossy compressed Bayer and X-Trans; `crates/raw/src/vendor/rafc.rs`, full sensor verification on 13 bodies, `docs/raf-compression.md`), RW2 / Leica RWL / Panasonic RAW in every raw format (compressed 4 and 6, the prefix-coded strips of format 8 from the GH6 on, packed 2/5/7, the 16-bit words of the 2005–2007 bodies; black levels, in-camera aspect crops and mapped-out defect pixels; 178 CC0 files from 118 bodies checked, `crates/raw/src/vendor/rw2.rs`), PEF, ORF (uncompressed; colour-filter layout from the file's Exif `CFAPattern`), Hasselblad 3FR with uncompressed raw data (X1D, X1D II, X2D, CFV 100C: a TIFF without a DNG version tag that describes its CFA IFD, levels, crop and white balance with DNG's tags; `RawFormat::CfaTiff`, read by `dng::decode_as`, RGGB when the file states no `CFAPattern`; the lossless-JPEG 3FR and FFF files use scan selection value 8 and stay preview-only), Samsung SRW without compression (NX5, NX10, NX11 and the NX20-generation bodies NX20, NX200, NX210, NX1000 and NX1100 as 12-bit packed samples in either bit order, EX1 and WB2000 as 16-bit words; layout, camera-JPEG framing, levels and white balance from the maker note, `crates/raw/src/vendor/srw.rs`; median ΔE vs the camera JPEG 2.2–7.6 on 11 of the 12 files from 10 bodies checked, 10.7 (5.7 registered) on the backlit WB2000 sample). 12-bit NEF black level: maker note `0x003d` is in 14-bit units (D750, D780, D850, D7500, Z 50 checked). Lossy type 2 NEF curves of version `0x44 0x40` (D780, D6, Z 5, Z 6, Z 7, Z 7_2) span a quarter of the sample range, read from the table's own point spacing. CR3 lossless CRX Bayer and version 0x100/0x200 C-RAW decodes to sensor pixels with timed white balance, black/white levels and file crop (the shot's aspect ratio from the maker note's `AspectInfo`); full sensor samples match the reference on M50/R100/R8 (`crates/raw/tests/cr3_corpus.rs`, `docs/cr3.md`). Unsupported coding variants retain metadata and use the embedded JPEG when available; HEVC preview decoding remains unsupported. Missing: CR3 unverified CRX variants, compressed ORF, compressed Samsung SRW (NX1, NX30, NX300, NX500, NX2000, NX3000, NX3300, NX mini: preview only with the reason), NEFs labelled compressed (34713) but stored uncompressed without a `0x0096` table (Z 6 packed 14-bit, D850 12-bit uncompressed), NEF "lossy after split" (preview only: imported with `preview_only` = the decoder's reason, rendered as a rendered JPEG, flagged by a grid badge and loupe/Edit/Info notices, `previewOnly` in `catalog.query`; Reload clears it once the file decodes), TIFF-based raws whose raw data sits in a private block (Phase One / Leaf IIQ, Canon EOS-1D / 1Ds and Kodak DCS TIFFs: IFD0 is only a reduced RGB image next to a much larger declared picture) are recognised from that structure and import as `preview_only` with the reason, instead of opening as a thumbnail-sized ordinary image (`thumbnail_shell` in `crates/raw/src/lib.rs`), Recognised raws LightCraft cannot decode open as `preview_only` with any usable embedded JPEG, also Canon CRW, Minolta MRW and Sigma X3F (containers recognised by magic, preview found by a structural JPEG scan), Kodak KDC (IFD0 without `ImageWidth`), Leaf MOS and Epson ERF (scan), and any decode failure of a recognised raw, not only an unsupported variant; ones with no JPEG still fail with "without an embedded preview", AVIF decode (HEIC decodes only behind the non-default `heif` feature: `crates/heif`, heic-rs, same policy as PhotoCraft; 8/10-bit, alpha, irot/imir/clap, ICC/EXIF/XMP), palette (indexed-colour) TIFF (refused by the `tiff` crate) |
| LR-IMP-CAMERA-COVERAGE | Camera coverage, verified per model | P0 | 🟡 | `crates/raw/tests/corpus.rs`, `xtask/src/main.rs` | a supported container is not the same as every camera that writes it decoding correctly: ~55 CC0 corpus files plus 6 exact-sensor CR3 cases (plus ~60 NEFs checked by hand and 178 Panasonic / Leica RW2, RWL and RAW files from 118 bodies, checked against each file's own JPEG) against the >1,000 models Lightroom lists; per-model differences still surface (e.g. the CR2 colour-filter layout differed by model until it was read from the file's own tag, issue #85, checked on 35 CR2 bodies; pre-2017 Sony ARWs opened green until their scrambled white balance / black level were read, issue #148, checked on 16 ARWs from 15 Sony bodies; Canon PowerShot and EOS M CR2s whose `ColorData` is stored as bytes opened green until the bytes were read as 16-bit words, 25 files from 25 bodies checked). Compressed RAF sensor arrays verified on 13 Fujifilm bodies (`docs/raf-compression.md`). Grow the CC0 corpus per model and test each sample decodes with plausible colour. Nikon CropArea and untagged-preview colour-space regression tests; private Z 8 crop verified. |
| LR-IMP-CAMERA-COVERAGE | Camera coverage, verified per model | P0 | 🟡 | `crates/raw/tests/corpus.rs`, `xtask/src/main.rs` | a supported container is not the same as every camera that writes it decoding correctly: ~55 CC0 corpus files plus 6 exact-sensor CR3 cases (plus ~60 NEFs checked by hand and 178 Panasonic / Leica RW2, RWL and RAW files from 118 bodies, checked against each file's own JPEG) against the >1,000 models Lightroom lists; per-model differences still surface (e.g. the CR2 colour-filter layout differed by model until it was read from the file's own tag, issue #85, checked on 35 CR2 bodies; pre-2017 Sony ARWs opened green until their scrambled white balance / black level were read, issue #148, checked on 16 ARWs from 15 Sony bodies; Canon PowerShot and EOS M CR2s whose `ColorData` is stored as bytes opened green until the bytes were read as 16-bit words, 25 files from 25 bodies checked). Compressed RAF sensor arrays verified on 13 Fujifilm bodies (`docs/raf-compression.md`). Sony ILCE-7CR (61 MP): lossless compressed L and M and compressed ARW2 samples of one scene in the corpus (black level, default crop, as-shot gains, lossless vs compressed mosaic agreement, fitted camera look), and all nine public codings (also uncompressed, small and APS-C crop) decode and fit. Grow the CC0 corpus per model and test each sample decodes with plausible colour. Nikon CropArea and untagged-preview colour-space regression tests; private Z 8 crop verified. |
| LR-IMP-CULL-AT-IMPORT | Culling analysis at import | P2 | 🟡 | `cmd:photo.analyze` | run Assisted Culling on the imported photos (they're selected after an import); not automatic |
| LR-IMP-MOVE | Move on import [Classic] | P1 | ✅ | `cmd:library.import` (`mode` move), `crates/engine/src/import_move.rs`, `crates/engine/src/tests_import_move.rs`, `crates/ui-egui/src/import.rs` | Transfer ▸ Move with Copy's destination, folders (day / month / one folder / custom template), rename template and example destination; XMP sidecars (both namings) move along; each source is removed only after its destination is written (hard link on the same volume, else copied, synced and compared byte for byte) and its catalog record is saved; failed, duplicate, unchecked files keep their sources, taken names get -1, -2…, never overwritten; files already in the destination/library are added in place; sources that can't be removed (read-only card) are kept and reported (`kept`). Undo removes the photos from the library but leaves the moved files at the destination. No Copy as DNG while moving |
| LR-IMP-DNG-CONVERT | Convert to DNG on import [Classic] | P2 | ✅ | `cmd:library.import` (`dng`), `crates/ui-egui/src/import.rs` | copy imports: Raw files ▸ Copy as DNG (lossless; the card is untouched); the raw copy is removed only once its DNG is verified and on disk (issue #106) |

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@ -340,6 +340,23 @@ const RAW_SAMPLES: &[(&str, &str, &str)] = &[
"https://raw.pixls.us/data/Sony/ILCE-7M4/ILCE-7M4_DSC06676_FullFrame-LossLess-Compressed-Small.ARW",
"cbbd0930c7d8706dff84c68a2004454266e6fd0d8354f5f76a106b5d776e0223",
),
// ILCE-7CR (61 MP), one scene in three codings: lossless compressed L (2×2 CFA cells per LJ92 sample) and M
// (subsampled YCbCr), and compressed ARW2
(
"arw-sony-a7cr-lossless-l.arw",
"https://raw.pixls.us/data/Sony/ILCE-7CR/DSC00795.ARW",
"3e1642f3a1ae7c9f93228c5f09f27e362608e6a4ca1b3e5d8dd9eb8fae576997",
),
(
"arw-sony-a7cr-lossless-m.arw",
"https://raw.pixls.us/data/Sony/ILCE-7CR/DSC00796.ARW",
"5bcba4acc52a5b902074581b4a2f5fb3c79ec56bd0fdc1746b9e2c0f9d3e9c88",
),
(
"arw-sony-a7cr-compressed.arw",
"https://raw.pixls.us/data/Sony/ILCE-7CR/DSC00798.ARW",
"f5096e8fbccf0842c8a57763cabd2836608f019eb7fd54f7b22260c2f5bc4da5",
),
// pre-2017 bodies: white balance only in the enciphered maker note, black level only in the SR2SubIFD (#148)
(
"arw-sony-rx100m3.arw",