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SnapOtter
7db6bb97da
- Create 53 per-tool VitePress documentation pages with accurate parameters from Zod schemas, example requests, and response formats - Add root llms.txt for LLM-friendly repo browsing - Fix OpenAPI spec: add auth and 422 error schemas to edit-metadata/inspect and strip-metadata/inspect sub-routes - Fix tool count inconsistency (52 -> 53) across landing site, e2e tests, and local docs - Rename color-adjustments.ts to adjust-colors.ts to match tool ID - Update VitePress sidebar with all 8 tool categories and top nav
4.4 KiB
4.4 KiB
Remove Background
AI-powered background removal with optional effects (blur, shadow, gradient, custom background).
API Endpoint
POST /api/v1/tools/remove-background
Processing: Asynchronous (returns 202, poll /api/v1/jobs/{jobId}/progress for status via SSE)
Model bundle: background-removal (4-5 GB)
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| file | file | Yes | - | Image file (multipart) |
| model | string | No | - | AI model variant to use |
| backgroundType | string | No | "transparent" |
One of: transparent, color, gradient, blur, image |
| backgroundColor | string | No | - | Hex color for solid background |
| gradientColor1 | string | No | - | First gradient color |
| gradientColor2 | string | No | - | Second gradient color |
| gradientAngle | number | No | - | Gradient angle in degrees |
| blurEnabled | boolean | No | - | Enable background blur effect |
| blurIntensity | number | No | - | Blur intensity (0-100) |
| shadowEnabled | boolean | No | - | Enable drop shadow on subject |
| shadowOpacity | number | No | - | Shadow opacity (0-100) |
| outputFormat | string | No | - | Output format: png, webp, or avif |
| edgeRefine | integer | No | - | Edge refinement level (0-3) |
| decontaminate | boolean | No | - | Remove color bleed from edges |
Example Request
curl -X POST http://localhost:13490/api/v1/tools/remove-background \
-F "file=@photo.jpg" \
-F 'settings={"backgroundType":"transparent","edgeRefine":2,"outputFormat":"png"}'
Response
Initial Response (202 Accepted)
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"async": true
}
Progress (SSE at /api/v1/jobs/{jobId}/progress)
event: progress
data: {"phase":"processing","stage":"Removing background...","percent":50}
Final Result (via SSE)
{
"phase": "complete",
"percent": 100,
"result": {
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/{jobId}/photo_mask.png",
"maskUrl": "/api/v1/download/{jobId}/photo_mask.png",
"originalUrl": "/api/v1/download/{jobId}/photo_original.png",
"originalSize": 245000,
"processedSize": 180000,
"filename": "photo.jpg",
"model": "rembg"
}
}
Effects Endpoint (Phase 2)
POST /api/v1/tools/remove-background/effects
Re-applies background effects without re-running the AI model. Uses cached mask and original from Phase 1.
Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| settings | JSON | Yes | - | JSON with effect settings (see below) |
| backgroundImage | file | No | - | Custom background image (when backgroundType is image) |
Settings JSON fields
| Field | Type | Required | Description |
|---|---|---|---|
| jobId | string | Yes | Job ID from Phase 1 |
| filename | string | Yes | Original filename from Phase 1 |
| backgroundType | string | No | transparent, color, gradient, blur, image |
| backgroundColor | string | No | Hex color for solid background |
| gradientColor1 | string | No | First gradient color |
| gradientColor2 | string | No | Second gradient color |
| gradientAngle | number | No | Gradient angle in degrees |
| blurEnabled | boolean | No | Enable background blur |
| blurIntensity | number | No | Blur intensity (0-100) |
| shadowEnabled | boolean | No | Enable drop shadow |
| shadowOpacity | number | No | Shadow opacity (0-100) |
| outputFormat | string | No | png, webp, or avif |
Example Request
curl -X POST http://localhost:13490/api/v1/tools/remove-background/effects \
-F 'settings={"jobId":"a1b2c3d4-...","filename":"photo.jpg","backgroundType":"color","backgroundColor":"#FF5500","outputFormat":"png"}'
Response (200 OK)
{
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"downloadUrl": "/api/v1/download/{jobId}/photo_nobg.png",
"processedSize": 195000
}
Notes
- Requires the
background-removalmodel bundle to be installed (4-5 GB). - Phase 1 caches the transparent mask and original image so that Phase 2 (effects) can re-apply different backgrounds instantly without re-running the AI model.
- Supports HEIC/HEIF, RAW, TGA, PSD, EXR, and HDR input formats via automatic decoding.
- EXIF rotation is auto-corrected before processing.