LR-PROF-CAMERACOLOR: Panasonic RW2 file-local camera look

RW2 / RWL / RAW join ARW and NEF: the starting look (matrix, hue/saturation table, tone and chroma curves) is
fitted to the file's own embedded JPEG behind the same gates, with white balance relative to the as-shot look.
Panasonic previews always show the whole active area while the default crop is the in-camera aspect ratio, so when
the preview matches the active area instead of the crop, the reference is cropped to the default crop before
fitting (corpus_rw2_with_an_in_camera_crop_gets_a_camera_look).

On 174 CC0 samples with a preview 140 fits are accepted (93 of the 114 bodies with a preview), median ΔE against
the camera JPEG 5.0 with matching lightness; most of the others are compacts and kit zooms whose camera JPEG is
distortion-corrected (tag 0x0119 isn't used yet). `lightcraft-cli calibrate` keeps collecting ARW and NEF only.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QtQmZ6peZXGn3wiqeowV2v
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Claude 2026-10-07 16:36:06 +00:00
parent 6bd64e4ad4
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7 changed files with 72 additions and 28 deletions

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@ -301,7 +301,7 @@ LightCraft is young and moving fast. **Where we honestly stand** (details in the
| Masking: brush, linear, radial, luminance/colour range, add/subtract/intersect | ✅ (AI subject/sky use classical heuristics for now) |
| Crop, straighten tool + auto straighten, flip, rotate, aspect ratios, overlays | ✅ |
| Profiles (Color, Neutral, Vivid, Landscape, Portrait, Monochrome: our own looks), presets, versions, history, copy/paste/sync settings | ✅ |
| Camera colour: DNG files use their own matrices | ✅ · our own calibration for other raws ⬜ (top priority; neutral fallback today) |
| Camera colour: DNG files use their own matrices | ✅ · our own calibration for other raws ⬜ (top priority; ARW, NEF and RW2 start from a look fitted to their own JPEG, other raws from a neutral fallback) |
| Native macOS menu bar (generated from the command registry), control channel + every widget addressable, headless UI snapshots | ✅ |
| RAW: DNG, CR2, ARW, NEF (uncompressed + lossless/lossy compressed), Fujifilm RAF (uncompressed, Bayer + X-Trans), Panasonic RW2 / Leica RWL / Panasonic RAW (every raw format, DMC-LX1 to DC-S1RM2), Pentax PEF, Olympus ORF (uncompressed); embedded previews for every format incl. CR3 | ✅ · CR3, compressed RAF/ORF decode ⬜ |
| Detail: sharpening, luminance + colour noise reduction | ✅ · AI Denoise, Super Resolution ⬜ |

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@ -24,7 +24,7 @@ duplicate Local entries #22, black GPU exports on an Intel iGPU #78).
|---|---:|---|---|
| **Feature checklist** | 79% | P0 core and P1 nearly complete: import (Add / Copy / Move, templates, devices), library, grid/loupe/compare/survey, every Edit slider, curves, colour grading, masking tools, crop/Upright, heal/clone, presets/profiles, versions/history, sync, export, menus, shortcuts | P1: lens-profile database, content-aware fill (patch synthesis), video playback/trim |
| **RAW coverage** (formats people shoot) | ~55% | DNG (all kinds), CR2, ARW, NEF (uncompressed + Huffman lossless/lossy), uncompressed RAF/ORF, RW2 / RWL / Panasonic RAW (every raw format, checked on 178 files from 118 Panasonic and Leica bodies), PEF; every container's embedded preview (incl. CR3) | **CR3** (every Canon since ~2018), compressed RAF/ORF, Nikon lossy-after-split, Canon sRAW, HEIC/AVIF. NEFs labelled compressed but stored uncompressed (Z 6 packed 14-bit, D850 12-bit uncompressed). Per-model verification is thin (~55 corpus files vs >1,000 models) |
| **Colour & image quality** | ~55–65% | Pipeline is complete and fast; GPU path CPU-exact within 1/255 | **No measured camera calibration database**: ARW and NEF have a guarded per-file embedded-JPEG colour estimate (docs/camera-preview-colour.md); other non-DNG raws and rejected estimates use a neutral matrix. Colour fidelity remains incomplete. No lens-profile database. No measured fidelity against Lightroom (tone, highlights, texture/clarity, NR, sharpening are tuned by eye) |
| **Colour & image quality** | ~55–65% | Pipeline is complete and fast; GPU path CPU-exact within 1/255 | **No measured camera calibration database**: ARW, NEF and RW2 have a guarded per-file embedded-JPEG colour estimate (docs/camera-preview-colour.md); other non-DNG raws and rejected estimates use a neutral matrix. Colour fidelity remains incomplete. No lens-profile database. No measured fidelity against Lightroom (tone, highlights, texture/clarity, NR, sharpening are tuned by eye) |
| **AI & computational** | ~15–20% | Assisted culling (focus, bursts), auto tone, HDR/panorama merge; subject/sky/background masks as classical heuristics | Real segmentation masks (subject, sky, people, objects, landscape, depth), AI denoise, super resolution, lens blur, generative remove, faces/people, natural-language search. **Blocked on a model strategy** (licensable weights or our own training; pure-Rust inference is feasible) |
| **Workflow & library** | ~85% (single machine) | Robust catalog (journal + snapshots, background compaction, crash-tested), 85k-photo libraries stay responsive, Local browsing with automatic cleanup, XMP interop, keywords, smart albums, Move import | Opening an 85k library takes 1.7–4.7 s; no cloud sync (out of scope), no tablet companion (#74, roadmap), shared albums, publish services, tethering |
| **Classic modules** | ~30% | Geotagging from GPX track logs, soft proofing (partial), slideshow (basic) | **Map view, Book, Print, Slideshow module, Web, publish services**: ~40 tracker rows ⬜ |
@ -36,7 +36,7 @@ duplicate Local entries #22, black GPU exports on an Intel iGPU #78).
| User | Readiness | What blocks them |
|---|---:|---|
| JPEG / DNG shooter, single machine | ~85% | Fidelity polish, AI masks |
| Nikon / Sony / Panasonic / older-Canon raw shooter | ~65% | Camera colour fidelity and coverage (ARW and NEF preview estimates are only a starting point); Panasonic compacts and kit zooms also miss their embedded distortion correction |
| Nikon / Sony / Panasonic / older-Canon raw shooter | ~65% | Camera colour fidelity and coverage (ARW, NEF and RW2 preview estimates are only a starting point); Panasonic compacts and kit zooms also miss their embedded distortion correction |
| Canon CR3 / Fujifilm / Olympus shooter | ~35% | Their raws open as embedded previews only (CR3: the full-size JPEG with full metadata) |
| Lightroom Classic power user | ~45% | Print, Book, Map, publish, tethering |
| Relies on AI (masks, denoise) | ~25% | Object / Describe masks via optional SAM 3 (download not yet hosted); no AI denoise |
@ -46,8 +46,8 @@ duplicate Local entries #22, black GPU exports on an Intel iGPU #78).
Priorities, in order. Each points at tracker rows in [`docs/parity.md`](docs/parity.md) → *Top gaps*.
1. **Camera colour calibration of our own** (LR-PROF-CAMERACOLOR, P0): fit each camera to its own embedded JPEG, use
matrices the files carry themselves, then chart shots. Sony ARW and Nikon NEF have the file-local fit (matrix + tone
curve from their own JPEG); generalise it to the other makes' raws (RW2, PEF, ORF…), then validate fidelity.
matrices the files carry themselves, then chart shots. Sony ARW, Nikon NEF and Panasonic RW2 have the file-local fit
(matrix + tone curve from their own JPEG); generalise it to the other makes' raws (PEF, ORF…), then validate fidelity.
2. **Raw formats, clean-room** (LR-IMP-FORMATS, P0): **CR3** first, then compressed RAF / ORF, NEF
lossy-after-split, sRAW. Decided 2026-10-05: write our own decoders from prose descriptions (never decoder source,
no LGPL dependency); compressed NEF (#86) is the template.
@ -84,7 +84,7 @@ hardening (#78), copyright metadata (#51), GPX geotagging (#60), import tag help
| M8 | Heal / Remove | content-aware remove (PatchMatch), heal, clone, brush spots, visualize spots, red/pet eye | 6–10 | 🚧 (heal, clone, auto source, visualize spots, red/pet eye ✅; PatchMatch remove ⬜) |
| M9 | Presets, profiles, versions, sync | preset browser + amount, create/import presets, profile browser, versions, history, copy/paste/sync settings | 5–8 | ✅ |
| M10 | Export & share | export dialog (JPEG/PNG/TIFF/DNG/AVIF/JXL/original), sizing, sharpening, metadata, watermark, naming, batch jobs, XMP sidecars, HDR export | 6–10 | 🚧 (all formats incl. DNG/original, sizing, presets, background jobs ✅; JXL encode, HDR export ⬜) |
| M11 | RAW II | CR3, RAF (X-Trans), ORF, RW2, PEF, SRW, 3FR, IIQ + long tail; camera calibration DB; HEIC/AVIF/JXL import | 20–35 | 🚧 (RAF uncompressed, RW2 (every raw format), PEF, ORF uncompressed ✅; **camera colour calibration** 🚧 (guarded ARW and NEF preview fitting; measured database still missing), CR3, compressed ORF/RAF ⬜) |
| M11 | RAW II | CR3, RAF (X-Trans), ORF, RW2, PEF, SRW, 3FR, IIQ + long tail; camera calibration DB; HEIC/AVIF/JXL import | 20–35 | 🚧 (RAF uncompressed, RW2 (every raw format), PEF, ORF uncompressed ✅; **camera colour calibration** 🚧 (guarded ARW, NEF and RW2 preview fitting; measured database still missing), CR3, compressed ORF/RAF ⬜) |
| M12 | AI & smart features | subject/sky/background/people/object masks, semantic search, faces/People (permissively licensed models, pure-Rust inference) | 20–40 | ⬜ |
| M13 | Merge | HDR merge (deghost), panorama (projections, boundary warp, fill edges), HDR panorama | 10–15 | ✅ |
| M14 | Video | import/playback/trim via FilmCraft crates, global edits + presets on video, video export | 6–10 | ⬜ |
@ -178,7 +178,7 @@ Not decoded yet — preview only (no permissively licensed description; black-bo
alignment or reset predictors at the split row). The other Nikon Huffman variants are decoded (`crates/raw/src/vendor/nefc.rs` documents the analysis).
- **Olympus compressed ORF**, **Fujifilm compressed RAF**, **Canon CR3/CRX** (M11.1), **Canon sRAW/mRAW**, lossy DNG.
**Camera colour matrices:** ARW files can use guarded, separate chromaticity and tone estimates from their own embedded JPEG (see `docs/camera-preview-colour.md`); this is a per-file camera-look estimate with relative WB, not measured calibration or absolute-Kelvin WB. Other non-DNG raws and rejected fits use the documented neutral fallback (camera RGB ≈ linear sRGB, flagged
**Camera colour matrices:** ARW, NEF and RW2 files can use guarded, separate chromaticity and tone estimates from their own embedded JPEG (see `docs/camera-preview-colour.md`); this is a per-file camera-look estimate with relative WB, not measured calibration or absolute-Kelvin WB. Other non-DNG raws and rejected fits use the documented neutral fallback (camera RGB ≈ linear sRGB, flagged
`matrix_is_fallback`) with the file's as-shot white-balance multipliers. Clean sources to evaluate next: manufacturer
matrices stored in the files themselves (Olympus ImageProcessing `ColorMatrix`, Pentax equivalents; Panasonic RW2 files carry none) and our
own chart-based calibration (M11.4). Adobe matrices are never used.
@ -194,7 +194,7 @@ own chart-based calibration (M11.4). Adobe matrices are never used.
tracker rows for camera colour, camera coverage and render fidelity.
- 2026-10-07: Panasonic RW2 / Leica RWL / Panasonic RAW decode in every raw format (compressed 4/6/8, packed 2/5/7,
16-bit words), black levels, in-camera aspect crops and mapped-out defects established on 178 CC0 files from 118
bodies.
bodies; RW2 gets the file-local camera look (accepted on 140 of 174 files with a preview).
## Chinese and Japanese interfaces, and text watermarks

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@ -336,11 +336,12 @@ impl Photo {
pub fn develops_raw(&self) -> bool {
self.kind == MediaKind::Raw && self.preview_only.is_none()
}
/// The current ARW and NEF readers have vendor WB multipliers but no measured camera
/// The current ARW, NEF and RW2 readers have vendor WB multipliers but no measured camera
/// illuminant. Use adjustments relative to the camera's as-shot look, as for rendered
/// photographs (the engine's `camera_preview::file_local_look` covers the same formats).
/// photographs (the engine's `camera_preview::file_local_look` covers the same formats; RWL and
/// RAW are Leica's and the oldest Panasonic bodies' names for RW2 files).
pub fn relative_wb(&self) -> bool {
self.develops_raw() && ["ARW", "NEF", "NRW"].iter().any(|f| self.format.eq_ignore_ascii_case(f))
self.develops_raw() && ["ARW", "NEF", "NRW", "RW2", "RWL", "RAW"].iter().any(|f| self.format.eq_ignore_ascii_case(f))
}
/// The develop settings import gave this photo: [`Photo::camera_defaults`], or the user's
/// default preset applied on top of them ([`Photo::import_look`]).
@ -430,7 +431,15 @@ mod edited_tests {
#[test]
fn sony_and_nikon_raws_use_relative_white_balance() {
for (name, format, relative) in [("a.arw", "ARW", true), ("a.nef", "NEF", true), ("a.nrw", "nrw", true), ("a.dng", "DNG", false)] {
for (name, format, relative) in [
("a.arw", "ARW", true),
("a.nef", "NEF", true),
("a.nrw", "nrw", true),
("a.rw2", "RW2", true),
("a.rwl", "RWL", true),
("a.raw", "RAW", true),
("a.dng", "DNG", false),
] {
let mut p = Photo::new(PhotoId(1), Source::Demo { scene: 0 }, name, format, 10, 10, "2026-10-01T00:00:00");
p.kind = MediaKind::Raw;
p.as_shot_wb = Some((5200.0, 4.0));

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@ -1,5 +1,5 @@
//! Estimate the starting look of a raw without a camera colour matrix (Sony ARW, Nikon NEF) from its
//! own JPEG. Colour and luminance are fitted separately; the JPEG supplies correspondences only,
//! Estimate the starting look of a raw without a camera colour matrix (Sony ARW, Nikon NEF, Panasonic
//! RW2) from its own JPEG. Colour and luminance are fitted separately; the JPEG supplies correspondences only,
//! never output pixels or a replacement for RAW editing.
//! A global matrix can't follow the camera's hue-dependent rendering (the best matrix rendered a
//! lime shirt olive that the camera kept lime): a hue/saturation table fitted to the residuals
@ -31,7 +31,7 @@ pub(crate) const PROFILE_PROXY: usize = 192;
/// as-shot look (`docs/camera-preview-colour.md`). The catalog's `Photo::relative_wb` matches the
/// same formats by file extension.
pub(crate) fn file_local_look(format: RawFormat) -> bool {
matches!(format, RawFormat::Arw | RawFormat::Nef | RawFormat::Nrw)
matches!(format, RawFormat::Arw | RawFormat::Nef | RawFormat::Nrw | RawFormat::Rw2)
}
pub(crate) fn fit_preview(raw: &RawImage, bytes: &[u8], transform: &CameraTransform) -> Option<CameraLook> {
@ -63,14 +63,24 @@ fn proxies(raw: &RawImage, bytes: &[u8], transform: &CameraTransform, size: usiz
let jpeg = lightcraft_raw::embedded_preview(bytes)?;
let edge = (2 * size).max(384) as u32;
let decoded = lightcraft_codecs::decode(&jpeg, lightcraft_codecs::DecodeOptions { max_size: Some((edge, edge)), max_pixels: 64_000_000 }).ok()?;
let reference = decoded.to_working();
let crop = raw.crop.clipped(raw.active_area.width, raw.active_area.height);
let mut reference = decoded.to_working();
let (a, crop) = (raw.active_area, raw.crop.clipped(raw.active_area.width, raw.active_area.height));
if crop.width == 0 || crop.height == 0 || reference.width == 0 || reference.height == 0 {
return None;
}
let aspect = crop.width as f64 / crop.height as f64;
if (reference.width as f64 / reference.height as f64 / aspect - 1.0).abs() > 0.02 {
return None;
let matches = |w: usize, h: usize, rw: usize, rh: usize| (rw as f64 / rh as f64 / (w as f64 / h as f64) - 1.0).abs() <= 0.02;
if !matches(crop.width, crop.height, reference.width, reference.height) {
// Panasonic previews show the whole active area while the default crop is the in-camera aspect ratio
if !matches(a.width, a.height, reference.width, reference.height) {
return None;
}
let (sx, sy) = (reference.width as f64 / a.width as f64, reference.height as f64 / a.height as f64);
let (x, y) = ((crop.x as f64 * sx).round() as usize, (crop.y as f64 * sy).round() as usize);
let (w, h) = ((crop.width as f64 * sx).round() as usize, (crop.height as f64 * sy).round() as usize);
if w < 16 || h < 16 || x + w > reference.width || y + h > reference.height {
return None;
}
reference = reference.into_crop(x, y, w, h);
}
// Fixed, bounded proxy: the selected look cannot depend on thumbnail/export resolution.
let k = (crop.width.max(crop.height).div_ceil(edge as usize).max(2)).div_ceil(2) * 2;
@ -731,8 +741,8 @@ mod tests {
}
#[test]
fn sony_and_nikon_raws_get_a_file_local_look() {
assert!([RawFormat::Arw, RawFormat::Nef, RawFormat::Nrw].into_iter().all(file_local_look));
fn sony_nikon_and_panasonic_raws_get_a_file_local_look() {
assert!([RawFormat::Arw, RawFormat::Nef, RawFormat::Nrw, RawFormat::Rw2].into_iter().all(file_local_look));
assert!(![RawFormat::Dng, RawFormat::Cr2, RawFormat::Raf].into_iter().any(file_local_look));
}
@ -753,6 +763,24 @@ mod tests {
assert!(info.relative_wb && info.as_shot_temp == 6500.0 && info.as_shot_tint == 0.0);
}
/// 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]
fn corpus_rw2_with_an_in_camera_crop_gets_a_camera_look() {
let path = 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/rw2-panasonic-fz1000m2-4x3.rw2");
let Ok(bytes) = std::fs::read(&path) else {
eprintln!("skip: {} absent", path.display());
return;
};
let (img, info) = crate::files::load_bytes(&bytes, 400).unwrap();
assert_eq!((img.width, img.height), (400, 300), "framed in the in-camera aspect ratio");
assert!(info.camera_tone.is_some(), "no camera look fitted");
assert!(info.relative_wb && info.as_shot_temp == 6500.0 && info.as_shot_tint == 0.0);
}
#[test]
fn rejects_monochrome_invalid_and_unrelated_previews() {
let mut sensor = Rgb32f::new(32, 32);

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@ -1,4 +1,4 @@
# Sony ARW and Nikon NEF starting look
# Sony ARW, Nikon NEF and Panasonic RW2 starting look
ARW and NEF decoding supply a Bayer mosaic and camera white-balance multipliers, but currently no measured camera colour matrix. Treating camera RGB as linear sRGB produces a dark, muted default rendering. The loader now estimates a file-local starting look from that file's embedded camera JPEG, only when a usable camera matrix is absent. All output pixels still come from the RAW mosaic; there is no JPEG replacement or uniform saturation boost.
@ -40,6 +40,12 @@ Measuring this found a decoder bug: 12-bit NEFs store maker note `0x003d` BlackL
On one sample, Exposure +1 EV, Saturation +100, Contrast +50, warm/cool WB, tint, highlights and shadows all changed the output. The same matrix and curve were selected for 400-pixel and full-resolution renders. Headless UI checks wait until the loupe reports `source: render` and no jobs remain; the camera JPEG stand-in does not count as verification.
### Panasonic RW2
The same fit, gates and relative WB apply to Panasonic RW2, Leica RWL and the older Panasonic RAW files (all decode as `RawFormat::Rw2`; white balance from tags `0x0024`–`0x0026`). Their embedded JPEG (`JpgFromRaw`, 1920 px wide) always shows the whole active area, while the default crop is the aspect ratio set in the camera (4:3 on the 3:2 sensors, 1:1, 16:9, 2.71 on the S1R II…); when the preview matches the active area rather than the crop, the reference is cropped to the default crop before fitting.
Public CC0 samples from raw.pixls.us (178 files from 118 Panasonic and Leica bodies; the four from 2005–2007 carry no preview), rendered at 1200 px and compared with each file's embedded JPEG (mean CIE76 ΔE at 200 px): 140 of 174 fits accepted, from 93 of the 114 bodies with a preview, median ΔE 5.0 (1.2–21.3) with matching mean lightness (median |ΔL*| 0.4); 124 of them use a hue/saturation table. (Fitted with the matrix and tone curve alone, 137 were accepted at median ΔE 6.1; every one of those is as close or closer with the table and chroma curve, by 0.75 on average.) On the 14 corpus files with a preview the neutral fallback scored ΔE 9.6–27 and rendered up to 16 L* too dark; 13 fits were accepted, ΔE 2.8–8.9, lightness within 2 L*. Of the 34 files left on the neutral fallback, 21 fail the gates, almost all compacts and kit zooms (TZ/ZS, FZ2500, D-Lux, V-Lux, GF2, GX80 with its 12–32 mm): their camera JPEG is distortion-corrected, the pixel pairs no longer line up and the held-out RMS stays above 0.10 (GX80: 0.138 → 0.107); two S1 II shots just miss it (0.103, 0.107). The other 13 never reach the gates, mostly nearly colourless scenes (grey walls, concrete: under 5% coloured pixels) or dark ones (a night sky, a near-black frame). Panasonic's embedded distortion data (tag `0x0119`) is not used yet, and `lightcraft-cli calibrate` doesn't collect RW2 files: the misaligned pairs of distortion-corrected JPEGs would distort a pooled profile.
This is a per-file camera-look estimate, **not measured spectral calibration or Lightroom parity**. Camera local tone, picture styles, noise reduction and lens warps cannot all be reproduced by a global matrix/curve; same-aspect crops may evade the aspect check. Skin, mixed-light scenes and saturated highlights can still differ from a supplied JPEG. Broader Sony and Nikon model/lighting coverage, chart-based calibration, absolute WB and other manufacturers remain unverified. Rejected fits and other RAW formats retain their existing behaviour.
## Camera profiles (pooled per model)

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@ -59,7 +59,7 @@ Ordered by user impact, then tier, then effort. The checklist above counts featu
that decide whether a photographer can switch (see the honest assessment in [ROADMAP.md](../ROADMAP.md#where-we-stand)).
Take the first one nobody is working on.
1. **LR-PROF-CAMERACOLOR** (P0): our own camera colour calibration. Sony ARW and Nikon NEF now get a guarded file-local fit to their own embedded JPEG (colour matrix + hue/saturation/value table + tone and chroma curves, relative WB; per-model profiles pooled from many photos via `lightcraft-cli calibrate`; ARW: 7 of 10 public samples accepted, mean ΔE vs the camera JPEG 17–26 → 3–10; NEF: 13 of 13 decodable samples from 6 bodies accepted, ΔE 13–46 → 3–8, one mixed-light scene 13 → 12); measured calibration and fidelity remain missing. Other non-DNG raws and rejected fits still use a neutral matrix. Expand validated preview fitting and use matrices the files carry themselves; never Adobe data.
1. **LR-PROF-CAMERACOLOR** (P0): our own camera colour calibration. Sony ARW, Nikon NEF and Panasonic RW2 now get a guarded file-local fit to their own embedded JPEG (colour matrix + hue/saturation/value table + tone and chroma curves, relative WB; per-model profiles pooled from many photos via `lightcraft-cli calibrate` for ARW and NEF; ARW: 7 of 10 public samples accepted, mean ΔE vs the camera JPEG 17–26 → 3–10; NEF: 13 of 13 decodable samples from 6 bodies accepted, ΔE 13–46 → 3–8, one mixed-light scene 13 → 12; RW2: 140 of 174 public samples accepted, from 93 of the 114 bodies with a preview, median ΔE 5.0); measured calibration and fidelity remain missing. Other non-DNG raws and rejected fits still use a neutral matrix. Expand validated preview fitting and use matrices the files carry themselves; never Adobe data.
2. **LR-IMP-FORMATS** (P0): **CR3** first (every Canon body since ~2018), then compressed RAF / ORF, Nikon
"lossy after split" NEF, Canon sRAW; HEIC/AVIF decode. Clean-room, from prose descriptions only (see
`crates/raw/src/vendor/nefc.rs` for how compressed NEF was done). Until decoded, such photos are `preview_only`.
@ -276,7 +276,7 @@ under the UI command that wraps it (a no-op error); the UI command now wins.
| LR-PROF-ADOBE | Standard raw looks (own equivalents) | P0 | ✅ | `crates/engine/src/presets.rs` (`PROFILES`), `crates/pipeline/src/profiles.rs` | six own looks: Color, Neutral, Vivid, Landscape, Portrait, Monochrome |
| LR-PROF-ADAPTIVE | Adaptive profiles | P2 | ⬜ | | |
| LR-PROF-CAMERA | Camera-matching looks | P2 | ⬜ | | |
| LR-PROF-CAMERACOLOR | Camera colour calibration (own) | P0 | 🟡 | `crates/raw/src/color.rs`, `crates/raw/src/profile.rs`, `crates/engine/src/camera_preview.rs` | DNG files use the colour matrices and the camera-profile look they carry (`ProfileHueSatMap`, `ProfileLookTable`, `ProfileToneCurve`, read from the file at run time per DNG spec ch. 6 — Lightroom-converted DNGs rendered flat and muted without them, issue #138); Sony ARW and Nikon NEF get a guarded file-local fit to their own embedded JPEG — chromaticity matrix + hue/saturation/value table + tone and chroma curves, relative WB — or, with a local per-model profile pooled from many photos (`lightcraft-cli calibrate`, `crates/engine/src/camera_profiles.rs`), the profile's colour and only their own tone/chroma curves (on 29 held-out ILCE-7M4 photos mean ΔE vs the camera JPEG 3.54 → 3.10), kept with smart previews (see docs/camera-preview-colour.md); ARW: on 10 public raw.pixls.us samples from 8 bodies 7 fits were accepted, mean ΔE vs the camera JPEG 17–26 → 3–10; NEF: 13 of 13 decodable samples (D750, D780, D850, D7500, Z 50 and local D7500 shots) accepted, ΔE 13–46 → 3–8 (issue #150); this is not measured camera calibration; other raws and rejected fits use a neutral fallback (camera RGB ≈ linear sRGB, `matrix_is_fallback`) with as-shot white balance, so colours are muted and not accurate. Needs our own per-camera calibration: matrices the files carry themselves (e.g. Olympus `ColorMatrix`), fitting each camera to its own embedded JPEG, then chart shots. Adobe matrices / DCPs are never used. Biggest image-quality gap today |
| LR-PROF-CAMERACOLOR | Camera colour calibration (own) | P0 | 🟡 | `crates/raw/src/color.rs`, `crates/raw/src/profile.rs`, `crates/engine/src/camera_preview.rs` | DNG files use the colour matrices and the camera-profile look they carry (`ProfileHueSatMap`, `ProfileLookTable`, `ProfileToneCurve`, read from the file at run time per DNG spec ch. 6 — Lightroom-converted DNGs rendered flat and muted without them, issue #138); Sony ARW, Nikon NEF and Panasonic RW2 get a guarded file-local fit to their own embedded JPEG — chromaticity matrix + hue/saturation/value table + tone and chroma curves, relative WB — or, with a local per-model profile pooled from many photos (`lightcraft-cli calibrate`, ARW and NEF so far, `crates/engine/src/camera_profiles.rs`), the profile's colour and only their own tone/chroma curves (on 29 held-out ILCE-7M4 photos mean ΔE vs the camera JPEG 3.54 → 3.10), kept with smart previews (see docs/camera-preview-colour.md); ARW: on 10 public raw.pixls.us samples from 8 bodies 7 fits were accepted, mean ΔE vs the camera JPEG 17–26 → 3–10; NEF: 13 of 13 decodable samples (D750, D780, D850, D7500, Z 50 and local D7500 shots) accepted, ΔE 13–46 → 3–8 (issue #150); RW2 / RWL: 140 of 174 public samples accepted, from 93 of the 114 bodies with a preview, median ΔE 5.0 with matching lightness (13 of the 14 corpus files with a preview: ΔE 9.6–27 → 2.8–8.9; most rejections are compacts and kit zooms whose camera JPEG is distortion-corrected); this is not measured camera calibration; other raws and rejected fits use a neutral fallback (camera RGB ≈ linear sRGB, `matrix_is_fallback`) with as-shot white balance, so colours are muted and not accurate. Needs our own per-camera calibration: matrices the files carry themselves (e.g. Olympus `ColorMatrix`), fitting each camera to its own embedded JPEG, then chart shots. Adobe matrices / DCPs are never used. Biggest image-quality gap today |
| LR-PROF-CREATIVE | Creative profiles (own) | P2 | ✅ | `cmd:develop.profile`, `crates/pipeline/src/profiles.rs` | 16 own looks in Film / Cinematic / Muted / B&W (tone + point-curve fades, colour grading, mixer / B&W mix); scale with `ctl:profile.amount`; sliders untouched |
| LR-PROF-LEGACY | Legacy profiles | P2 | ⬜ | | |
| LR-PROF-NONRAW | Profiles for non-raw files | P0 | ✅ | `cmd:develop.profile` | same looks apply to JPEG/TIFF |

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@ -155,9 +155,10 @@
Nikon splits into two differently compressed halves still use the preview for now.)
- Panasonic and Leica raws (RW2, RWL and the older RAW files, DMC-LX1 to DC-S1R II) develop from the raw data in
every format the cameras write. Most bodies opened as preview only before: GH1–GH5, the G, GX, GF, GM, FZ, LX and
TZ/ZS series, Leica D-Lux, V-Lux and C-Lux, and the GH6, GH7, G9 II, S5 II and S9 generation. They open framed in
the aspect ratio set in the camera, with mapped-out sensor defects filled in. `.rwl` and `.raw` files are imported
too. Photos already imported as "preview only" switch over on Reload.
TZ/ZS series, Leica D-Lux, V-Lux and C-Lux, and the GH6, GH7, G9 II, S5 II and S9 generation. They start from a
colour and tone look fitted to the camera's own JPEG, as Nikon and Sony raws do, framed in the aspect ratio set in
the camera; mapped-out sensor defects are filled in. `.rwl` and `.raw` files are imported too. Photos already
imported as "preview only" switch over on Reload.
- Sony ARWs from before about 2017 (RX100, RX100 II–V, RX10, NEX, SLT, ILCE-6000, A7 / A7 II / A7R II and their
siblings) no longer open bright green (issue #148): their as-shot white balance and black level are read from the
file (Sony stores them only in scrambled maker-note data on these bodies), the few columns of padding at the right