dtourolle 2a4ac0ed3d Carry every identity across a re-detection, by box and by embedding
record_detections replaces an image's faces and carried only the user's
confirmations onto the new ones, by box overlap above 0.5 IoU. Everything
else on the old faces was dropped: the suggestions the last grouping pass
made, and the people the user had said a face was not. On the reference
library that is 13,011 suggestions and 77 rejections beside 3,778
confirmations — a re-detection of it would have been correct by
FR-CULL-12's letter, since suggestions are derived data, and would have
handed back a People screen of strangers.

Now every old face is read before the delete — box, vector, assignment,
rejections — and matched to the new faces one-to-one, best pair first. A
pair qualifies when the boxes overlap at all and either the overlap alone
says so (IoU above 0.5, the old rule) or the embeddings do (cosine above
SAME_FACE_COSINE, 0.45, the reference library's P≈0.95 line). The
embedding route claims the box a low-resolution pass drew badly enough
that overlap alone would not; the vector is also what breaks the tie in a
group photograph, where two neighbouring faces overlap both new boxes.
Overlap is required on both routes, because the same vector elsewhere in
the frame — a mirror, a print on the wall — is not the same face and must
not take its name. Onto the matched face go the assignment as it was,
confirmed or suggested with its probability, and every rejection.

The merge's match_faces still matches by overlap alone across devices; it
is the same question and is not changed here.
2026-09-19 18:34:31 +02:00
2026-08-26 10:08:51 +02:00

DarkRoom

A cross-platform, non-destructive RAW photo editor for Linux and Android.

Status: 0.9.0, and no longer a spike. A library opens, culls, develops and exports on both platforms, across eight tagged releases. What is not built is written down rather than merely absent — see docs/outstanding.md for the requirements that have no implementation and why, and docs/technical-debt.md for the compromises that were chosen.

Documentation

Document Contents
CONTRIBUTING.md How to land a first change without reading the rest
requirements.md What the software must do — 179 numbered requirements
architecture.md How it is built — crates, GPU pipeline, data model, sync
technical-debt.md Compromises taken deliberately, each with the condition that retires it
outstanding.md What is not built, and whether that is a decision or a gap
code-health.md What a contribution costs, per seam, measured
traceability.md Generated: which requirement is claimed by which file
faces.md Face detection and identity — the models, the licence problem, and what S14 measured

Building

Desktop:

cargo run -p darkroom-desktop

Android (containerised toolchain, see docker/android):

./docker/android/build.sh cargo ndk -t arm64-v8a build --release

Git LFS is required for the model weights, and the toolchain pins itself. CONTRIBUTING.md has the details and the four commands CI will run against what you send.

Current state

Working. A catalog over a local folder, a Nextcloud account, or a folder a sync client keeps in virtual-files mode — where a placeholder is treated as the photograph rather than as a one-byte file. A virtualised library grid with a capture-time timeline, ratings, labels, keywords, collections and a trash that survives a crash mid-operation. Card ingest. Face detection and identity, with the index syncing between devices. A develop pipeline of fifteen declared operations fused into a single compute dispatch, plus the neighbourhood operations that cannot be — clarity, texture, capture sharpening, noise reduction, lens correction, spectral film simulation. Crop, straighten, spot removal, gradient and subject-segmentation masks, named presets, and a generated panel that no operation in ui/ is allowed to name. Export to JPEG, PNG and 8- or 16-bit TIFF with resize and output sharpening.

The zero-copy display path works on desktop. The compute pass writes a texture that Slint composites directly, which is what ARCH §6.1 requires; the readback it forbids costs 96% of frame time at 4K, and

cargo run -p dr-gpu --example bench --features readback

still reproduces that measurement. The one exception is the Android develop view, which reads the frame back through the CPU because zero-copy there needs wgpu's Vulkan swapchain, and that tears a portrait window on a tablet whose panel is mounted landscape. It is debt, not a revision of the rule: the reasoning, the on-device measurements that forced it, and the three separate things any one of which would remove it are in technical-debt.md TD-1.

Not built. Plugins, compare and survey culling, focus peaking, burst grouping, AI denoise, tiled and progressive rendering, and most of the Android platform integration beyond running. The performance targets in §4.1 are unverified rather than unmet — the per-commit benchmark suite §8 requires does not exist, so nothing fails a build on a regression. docs/outstanding.md is the list, with the reasoning.

Licence

GPL-3.0-or-later.

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2026-10-07 11:27:59 +00:00
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