docs: organize tool pages by modality under /tools/<modality>/

Move all 157 tool pages into image/video/audio/pdf/data subfolders so URLs read /tools/<modality>/<id> (e.g. /tools/image/crop). Nest the image sub-categories under an Image group in the sidebar so the nav reads by modality. Add public/_redirects (301, clean + .html forms) mapping every old flat /tools/<id> URL to its new path so inbound links keep working. Rewrite all internal /tools links. Verified with a clean docs build (no dead links).
2026-08-03 07:46:42 +02:00 · 2026-06-18 14:12:28 +08:00
parent 03c1a5e36f
commit d24e244af4
162 changed files with 874 additions and 554 deletions
@@ -0,0 +1,77 @@
+# AI Canvas Expand
+
+Expand the canvas of an image with AI-powered fill (outpainting). Extends the image in any direction and fills the new areas with AI-generated content that matches the existing image.
+
+## API Endpoint
+
+`POST /api/v1/tools/image/ai-canvas-expand`
+
+**Processing:** Asynchronous (returns 202, poll `/api/v1/jobs/{jobId}/progress` for status via SSE)
+
+**Model bundle:** `object-eraser-colorize` (1-2 GB)
+
+## Parameters
+
+| Parameter | Type | Required | Default | Description |
+|-----------|------|----------|---------|-------------|
+| file | file | Yes | - | Image file (multipart) |
+| extendTop | integer | No | `0` | Pixels to extend at the top |
+| extendRight | integer | No | `0` | Pixels to extend at the right |
+| extendBottom | integer | No | `0` | Pixels to extend at the bottom |
+| extendLeft | integer | No | `0` | Pixels to extend at the left |
+| tier | string | No | `"balanced"` | Quality tier: `fast`, `balanced`, `high` |
+| format | string | No | `"auto"` | Output format: `auto`, `png`, `jpg`, `jpeg`, `webp`, `tiff`, `gif`, `avif`, `heic`, `heif`, `jxl` |
+| quality | integer | No | `95` | Output quality (1-100) |
+
+At least one extend direction must be greater than 0.
+
+## Example Request
+
+```bash
+curl -X POST http://localhost:13490/api/v1/tools/image/ai-canvas-expand \
+  -F "file=@photo.jpg" \
+  -F 'settings={"extendTop":200,"extendBottom":200,"extendLeft":100,"extendRight":100,"tier":"balanced"}'
+```
+
+## Response
+
+### Initial Response (202 Accepted)
+
+```json
+{
+  "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
+  "async": true
+}
+```
+
+### Progress (SSE at `/api/v1/jobs/{jobId}/progress`)
+
+```
+event: progress
+data: {"phase":"processing","stage":"Expanding canvas...","percent":50}
+```
+
+### Final Result (via SSE)
+
+```json
+{
+  "phase": "complete",
+  "percent": 100,
+  "result": {
+    "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
+    "downloadUrl": "/api/v1/download/{jobId}/photo_extended.png",
+    "previewUrl": "/api/v1/download/{jobId}/preview.webp",
+    "originalSize": 300000,
+    "processedSize": 520000
+  }
+}
+```
+
+## Notes
+
+- Requires the `object-eraser-colorize` model bundle to be installed (1-2 GB).
+- Uses LaMa-based outpainting to generate content for the expanded regions.
+- The `tier` parameter trades speed for quality: `fast` produces results quickly with potential artifacts, `high` takes longer but produces smoother, more coherent fills.
+- Extend values are in pixels. The final image dimensions will be: original width + extendLeft + extendRight by original height + extendTop + extendBottom.
+- For non-browser-previewable output formats (HEIC, JXL, TIFF), a WebP preview is generated alongside the main output.
+- Supports HEIC/HEIF, RAW, TGA, PSD, EXR, and HDR input formats via automatic decoding.