mARTin-B78
55f147d7a7
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A vision OCR engine grounds a figure far less precisely than it
transcribes one. Over all 138 figure regions of a 204-page issue the
transcribed contents were right while the boxes were routinely offset,
undersized, or sitting on the neighbouring text column -- page 23's card
grid was reported at x 0.24-0.54 where the graphic runs 0.41-0.95.
snap_visual_bboxes() reduces the page render to an ink-coverage grid,
seeds a connected-component search with the engine's box, and re-joins
tiles a gutter apart so a card grid comes back as one figure. Text
blocks are excluded from the mask, which is what stops a figure
swallowing the column beside it. A candidate must be solidly inked or
framed on nearly all of its rows and columns (admitting a white-interior
screenshot), may not shrink below 30% of the seed, and reverts when two
figures land on the same graphic; anything else keeps the box it had.
Runs before the figure crop in both OCR paths, so the images shown
during playback are framed correctly too. Replaces refine_picture_
bounds(), which only recognised coloured panels and had no text fence.
Also adds "Fix figure boundaries" in review and POST
/api/magazine/{id}/figures/refine behind it, so an issue ingested before
this pass can be corrected without re-running OCR. Verified live against
c't KI Wissen 2026: 78 of 138 boxes corrected, the rest declined.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
98 lines
4.5 KiB
Markdown
98 lines
4.5 KiB
Markdown
# Project map
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Living index of where things are and what state they are in.
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Update in the same commit as the change it describes.
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## Current phase
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Magazine projects, **P0 and P1 complete** (frontend reachable at Studio → Magazines). Audiobook/Rehearser/voice-library
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features are mature and in daily use.
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## Deployment
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Self-hosted Docker on the DGX Spark, port 7890, image
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`ghcr.io/martin-b78/tts-voice-creator-clone-and-design-2`.
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Python and static files are bind-mounted, so code changes need only a container
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recreate; rebuild and push only when `Dockerfile` or `requirements.txt` change.
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## Layout
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| Path | Role |
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| `server.py` | FastAPI app, router registration, auth middleware |
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| `core/` | domain logic — config, database, audio, voice, routing, magazine |
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| `routes/` | HTTP boundary, one module per feature area |
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| `static/js/` | frontend, one module per feature area (no build step for most) |
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| `tests/` | `test_*.py` (unittest) and `*.spec.js` (Playwright) |
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| `architecture/` | SOPs for subsystems whose design is not obvious from code |
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| `workflows/` | ComfyUI graphs for character portrait generation |
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## Feature areas
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| Area | Server | Frontend | State |
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| Voice library / clone / design | `routes/library.py`, `core/voice.py` | `library.js` | mature |
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| Read Aloud (books, PDFs) | `routes/reader.py` | `reader.js` | mature |
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| Audiobook casting | `routes/conversation.py` | `audiobook*.js` | mature |
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| Rehearser | `routes/rehearsals_db.py` | `rehearser-*.js` | mature |
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| Studio (phase wizard) | — | `studio.js` | mature |
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| TTS engines / routing | `routes/tts.py`, `core/routing.py` | `engines.js` | mature |
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| STT | `routes/stt.py` | — | mature |
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| **Magazines** | `core/magazine.py`, `routes/magazine.py` | `magazine.js`, `s-magazine.html` | **P0 + P1** |
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## Data model
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Documents (books and magazines alike) live under
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`<CONFIG_DIR>/reader_library/<doc_id>/`, discriminated by `meta.json → kind`:
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- `kind: "pdf"` / text — Read Aloud book. Text is extracted in the browser and
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not persisted; `meta.json` holds counts and a flat `idx` resume position.
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- `kind: "magazine"` — adds `layout.json`, `articles.json`, `pages/`, `images/`,
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`podcast/`, and a per-article `progress` map. See
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[architecture/magazine-ingestion.md](architecture/magazine-ingestion.md).
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Settings, presets, routes and the SQLite database also live under `CONFIG_DIR`,
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which is the writable volume.
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## Environment
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| Variable | Purpose |
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| `CONFIG_DIR` | writable state (settings, library, database) |
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| `VOICES_DIR` / `OUTPUT_DIR` | voice WAV library |
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| `TTS_CONTAINER_NAMES` | containers restarted after a voice change |
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| `DOCKER_HOST` | points at the socket proxy; the raw socket is not mounted |
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| `llm_url` / `llm_model` / `llm_api_key` | settings.json, OpenAI-compatible LLM |
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## Pending decisions
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- Container registry: ghcr costs quota against a private package (≈427 MB per
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push, 500 MB free on the Free plan). Local registry vs. ghcr vs. no re-pull is
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**unresolved** — the compose files currently point at ghcr.
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## Known limitations
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- `gitea` backup remote is 157 commits behind `origin`; `main` tracks `gitea`.
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- Magazine sidebar exclusion is a narrow-column geometry heuristic
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(`mark_sidebars`), not certain — review always shows every sidebar block.
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- Magazine word-level highlighting is a character-length estimate against
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real measured audio duration, not true forced alignment.
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- No formal cross-engine OCR accuracy benchmark exists (two engines wired:
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ocr-baidu-unlimited-ocr primary, KDL Frontier Parser nano fallback).
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- Figure boundaries are re-derived from the page render (`snap_visual_bboxes`)
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because vision OCR grounds figures loosely; it corrected 78 of 138 figure
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boxes on `c't KI Wissen 2026` and deliberately declines the rest. A pale
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chart or line drawing on white is below its ink threshold and keeps the
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engine's box — draw those by hand in review.
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- No `npm run qa` aggregate command yet; Python tests run via `unittest`,
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browser tests via `playwright test`.
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- The app has no authentication for the browser UI and no per-user data
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isolation — single-tenant/LAN-trust only (one global settings/database/voice
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library, no accounts). See `architecture/multi-tenant-and-identity.md` and
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TODO.md's "Deferred — public multi-user readiness" section.
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## Next logical step
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Magazine P2 per TODO.md: image descriptions, table/chart handling, EPUB 3
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Media Overlay export, and a formal OCR-engine benchmark (see
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architecture/magazine-ingestion.md).
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