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All 181 docs markdown files translated into 20 languages (apps/docs/<locale>/**). Companion to the i18n code PR; admin-merged because the file count exceeds GitHub's per-PR CI trigger limit. Validated by pnpm i18n:check (all surfaces, 0 stale/missing) and a clean all-locale docs build.
174 lines
5.9 KiB
Markdown
174 lines
5.9 KiB
Markdown
---
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description: "基于 AI 的护照和证件照生成器,具备人脸检测、背景去除和打印排版拼贴功能。"
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i18n_source_hash: d4b4f4ced988
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i18n_provenance: human
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i18n_output_hash: 8f1a76094628
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---
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# 护照照片 {#passport-photo}
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基于 AI 的护照和证件照生成器。采用两阶段工作流:先分析(人脸检测 + 背景去除),再生成(裁剪、调整尺寸并拼贴以供打印)。
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## API 端点 {#api-endpoints}
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该工具采用两阶段流程,分析和生成使用各自独立的端点。
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**模型包:** `background-removal` 和 `face-detection`
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---
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### 阶段 1:分析 {#phase-1-analyze}
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`POST /api/v1/tools/image/passport-photo/analyze`
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检测人脸特征点并去除背景。返回特征点数据和一张预览图,供前端显示裁剪预览。
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#### 参数 {#parameters}
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| 参数 | 类型 | 是否必填 | 默认值 | 说明 |
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|-----------|------|----------|---------|-------------|
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| file | file | 是 | - | 图片文件(multipart) |
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| clientJobId | string | 否 | - | 可选的任务 ID,用于通过 SSE 跟踪进度 |
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#### 请求示例 {#example-request}
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/passport-photo/analyze \
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-F "file=@headshot.jpg"
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```
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#### 响应(200 OK) {#response-200-ok}
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"filename": "headshot.jpg",
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"preview": "<base64-encoded PNG>",
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"previewWidth": 800,
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"previewHeight": 1067,
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"landmarks": {
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"leftEye": { "x": 0.42, "y": 0.35 },
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"rightEye": { "x": 0.58, "y": 0.35 },
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"eyeCenter": { "x": 0.50, "y": 0.35 },
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"chin": { "x": 0.50, "y": 0.65 },
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"forehead": { "x": 0.50, "y": 0.22 },
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"crown": { "x": 0.50, "y": 0.18 },
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"nose": { "x": 0.50, "y": 0.48 },
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"faceCenterX": 0.50
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},
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"imageWidth": 2400,
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"imageHeight": 3200
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}
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```
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#### 进度(SSE,可选) {#progress-sse-optional}
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若提供了 `clientJobId`,则会流式传输进度(人脸检测为 0-30%,背景去除为 30-95%)。
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#### 错误:未检测到人脸(422) {#error-no-face-detected-422}
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```json
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{
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"error": "No face detected",
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"details": "Could not detect a face in the uploaded image. Please upload a clear, front-facing photo with good lighting."
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}
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```
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---
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### 阶段 2:生成 {#phase-2-generate}
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`POST /api/v1/tools/image/passport-photo/generate`
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裁剪、调整尺寸,并可选地将照片拼贴到打印排版上。使用阶段 1 的缓存图片(不重新运行 AI)。
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#### 参数(JSON 请求体) {#parameters-json-body}
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| 参数 | 类型 | 是否必填 | 默认值 | 说明 |
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|-----------|------|----------|---------|-------------|
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| jobId | string | 是 | - | 阶段 1 返回的任务 ID |
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| filename | string | 是 | - | 阶段 1 的原始文件名 |
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| countryCode | string | 是 | - | 护照规格的国家代码(例如 `US`、`GB`、`IN`) |
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| documentType | string | 否 | `"passport"` | 证件类型(来自国家规格) |
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| bgColor | string | 否 | `"#FFFFFF"` | 背景颜色十六进制值 |
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| printLayout | string | 否 | `"none"` | 打印纸张排版:`none`、`4x6`、`a4` |
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| maxFileSizeKb | number | 否 | `0` | 最大文件大小限制(KB,0 = 无限制) |
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| dpi | number | 否 | `300` | 输出 DPI(72-1200) |
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| customWidthMm | number | 否 | - | 自定义照片宽度(毫米,覆盖国家规格) |
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| customHeightMm | number | 否 | - | 自定义照片高度(毫米,覆盖国家规格) |
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| zoom | number | 否 | `1` | 缩放系数(0.5-3)。值 > 1 时裁剪得更紧 |
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| adjustX | number | 否 | `0` | 水平位置调整 |
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| adjustY | number | 否 | `0` | 垂直位置调整 |
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| landmarks | object | 是 | - | 来自阶段 1 响应的特征点对象 |
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| imageWidth | number | 是 | - | 来自阶段 1 响应的图片宽度 |
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| imageHeight | number | 是 | - | 来自阶段 1 响应的图片高度 |
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#### 请求示例 {#example-request-1}
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```bash
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curl -X POST http://localhost:1349/api/v1/tools/image/passport-photo/generate \
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-H "Content-Type: application/json" \
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-d '{
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"jobId": "a1b2c3d4-...",
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"filename": "headshot.jpg",
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"countryCode": "US",
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"documentType": "passport",
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"bgColor": "#FFFFFF",
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"printLayout": "4x6",
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"dpi": 300,
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"zoom": 1,
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"adjustX": 0,
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"adjustY": 0,
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"landmarks": { "leftEye": {"x":0.42,"y":0.35}, "rightEye": {"x":0.58,"y":0.35}, "eyeCenter": {"x":0.50,"y":0.35}, "chin": {"x":0.50,"y":0.65}, "forehead": {"x":0.50,"y":0.22}, "crown": {"x":0.50,"y":0.18}, "nose": {"x":0.50,"y":0.48}, "faceCenterX": 0.50 },
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"imageWidth": 2400,
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"imageHeight": 3200
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}'
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```
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#### 响应(200 OK) {#response-200-ok-1}
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```json
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{
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"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
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"downloadUrl": "/api/v1/download/{jobId}/headshot_passport.jpg",
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"dimensions": {
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"widthMm": 51,
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"heightMm": 51,
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"widthPx": 602,
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"heightPx": 602,
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"dpi": 300
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},
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"spec": {
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"country": "United States",
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"countryCode": "US",
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"documentType": "passport",
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"documentLabel": "Passport"
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},
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"printDownloadUrl": "/api/v1/download/{jobId}/headshot_passport_print_4x6.jpg"
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}
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```
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---
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### 基础路由 {#base-route}
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`POST /api/v1/tools/image/passport-photo`
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返回引导信息,提示使用正确的子端点。
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```json
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{
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"error": "Use /api/v1/tools/image/passport-photo/analyze or /generate"
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}
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```
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## 说明 {#notes}
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- 需要安装 `background-removal` 和 `face-detection` 模型包。
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- 阶段 1 运行 AI(人脸特征点 + 背景去除)并缓存结果。阶段 2 是纯 Sharp 图片处理(快速,无需 AI)。
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- 特征点以归一化坐标形式返回(相对于图片尺寸的 0-1 范围)。
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- 分析响应中的 `preview` 字段是一张 base64 编码的 PNG(最大宽度 800px),用于快速显示。
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- 国家规格包含证件尺寸、头部高度比例以及基于官方护照照片要求的视线定位。
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- `printLayout` 选项会在 4x6 英寸或 A4 纸上生成拼贴排版,照片之间留有 2mm 的间隙。
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- 设置 `maxFileSizeKb` 时,输出会经过迭代压缩以符合大小限制。
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