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Face / PII Blur

使用 AI 驅動的臉部偵測(MediaPipe)自動偵測並模糊影像中的臉部。

API Endpoint

POST /api/v1/tools/image/blur-faces

處理方式: 非同步(回傳 202,透過 SSE 輪詢 /api/v1/jobs/{jobId}/progress 取得狀態)

模型套件: face-detection(200-300 MB)

Parameters

ParameterTypeRequiredDefaultDescription
filefileYes-影像檔案(multipart)
blurRadiusnumberNo30套用於偵測到臉部的模糊半徑(1-100)
sensitivitynumberNo0.5臉部偵測靈敏度(0-1)。較低的值以較高的信心偵測較少的臉部

Example Request

bash
curl -X POST http://localhost:1349/api/v1/tools/image/blur-faces \
  -F "[email protected]" \
  -F 'settings={"blurRadius":40,"sensitivity":0.3}'

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":"Detecting faces...","percent":40}

Final Result (via SSE)

json
{
  "phase": "complete",
  "percent": 100,
  "result": {
    "jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
    "downloadUrl": "/api/v1/download/{jobId}/group-photo_blurred.jpg",
    "originalSize": 450000,
    "processedSize": 420000,
    "facesDetected": 3,
    "faces": [
      {"x": 100, "y": 50, "w": 80, "h": 80},
      {"x": 300, "y": 60, "w": 75, "h": 75},
      {"x": 500, "y": 55, "w": 85, "h": 85}
    ]
  }
}

No Faces Detected

若未找到臉部,結果會包含一則警告:

json
{
  "phase": "complete",
  "percent": 100,
  "result": {
    "facesDetected": 0,
    "warning": "No faces detected in this image. Try increasing detection sensitivity."
  }
}

Notes

  • 需要安裝 face-detection 模型套件(200-300 MB)。
  • 輸出格式會自動與輸入格式相符。
  • faces 陣列包含每個偵測到臉部的邊界框座標(x、y、width、height)。
  • 增加 sensitivity(越接近 1.0)以偵測更多臉部,包含部分被遮擋的臉部。
  • 透過自動解碼支援 HEIC/HEIF、RAW、TGA、PSD、EXR 及 HDR 輸入格式。