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94 lines
2.4 KiB
Markdown
94 lines
2.4 KiB
Markdown
---
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description: Auto-detect and blur faces in images with AI face detection for privacy and GDPR-compliant anonymization.
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---
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# Face / PII Blur
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Auto-detect and blur faces in images using AI-powered face detection (MediaPipe).
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## API Endpoint
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`POST /api/v1/tools/image/blur-faces`
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**Processing:** Asynchronous (returns 202, poll `/api/v1/jobs/{jobId}/progress` for status via SSE)
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**Model bundle:** `face-detection` (200-300 MB)
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## Parameters
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| Parameter | Type | Required | Default | Description |
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|-----------|------|----------|---------|-------------|
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| file | file | Yes | - | Image file (multipart) |
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| blurRadius | number | No | `30` | Blur radius applied to detected faces (1-100) |
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| sensitivity | number | No | `0.5` | Face detection sensitivity (0-1). Lower values detect fewer faces with higher confidence |
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## Example Request
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/blur-faces \
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-F "file=@group-photo.jpg" \
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-F 'settings={"blurRadius":40,"sensitivity":0.3}'
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```
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## Response
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### Initial Response (202 Accepted)
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"async": true
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}
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```
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### Progress (SSE at `/api/v1/jobs/{jobId}/progress`)
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```
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event: progress
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data: {"phase":"processing","stage":"Detecting faces...","percent":40}
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```
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### Final Result (via SSE)
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```json
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{
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"phase": "complete",
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"percent": 100,
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"result": {
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"downloadUrl": "/api/v1/download/{jobId}/group-photo_blurred.jpg",
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"originalSize": 450000,
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"processedSize": 420000,
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"facesDetected": 3,
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"faces": [
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{"x": 100, "y": 50, "w": 80, "h": 80},
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{"x": 300, "y": 60, "w": 75, "h": 75},
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{"x": 500, "y": 55, "w": 85, "h": 85}
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]
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}
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}
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```
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### No Faces Detected
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If no faces are found, the result includes a warning:
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```json
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{
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"phase": "complete",
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"percent": 100,
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"result": {
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"facesDetected": 0,
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"warning": "No faces detected in this image. Try increasing detection sensitivity."
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}
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}
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```
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## Notes
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- Requires the `face-detection` model bundle to be installed (200-300 MB).
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- Output format matches the input format automatically.
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- The `faces` array contains bounding box coordinates (x, y, width, height) for each detected face.
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- Increase `sensitivity` (closer to 1.0) to detect more faces, including partially occluded ones.
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- Supports HEIC/HEIF, RAW, TGA, PSD, EXR, and HDR input formats via automatic decoding.
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