mirror of
https://github.com/snapotter-hq/SnapOtter.git
synced 2026-08-03 07:46:42 +02:00
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.
84 lines
2.7 KiB
Markdown
84 lines
2.7 KiB
Markdown
---
|
||
description: "使用 Real-ESRGAN AI 超分辨率将图像放大 2 到 4 倍,同时保留细节。"
|
||
i18n_source_hash: 150032e99476
|
||
i18n_provenance: human
|
||
i18n_output_hash: 464013380e6f
|
||
---
|
||
|
||
# 图像放大 {#image-upscaling}
|
||
|
||
使用 Real-ESRGAN 进行 AI 超分辨率增强。将图像放大 2 到 4 倍,同时保留细节。
|
||
|
||
## API 端点 {#api-endpoint}
|
||
|
||
`POST /api/v1/tools/image/upscale`
|
||
|
||
**处理方式:** 异步(返回 202,通过 SSE 轮询 `/api/v1/jobs/{jobId}/progress` 获取状态)
|
||
|
||
**模型包:** `upscale-enhance`(5-6 GB)
|
||
|
||
## 参数 {#parameters}
|
||
|
||
| 参数 | 类型 | 必填 | 默认值 | 说明 |
|
||
|-----------|------|----------|---------|-------------|
|
||
| file | file | 是 | - | 图像文件(multipart) |
|
||
| scale | number | 否 | `2` | 放大倍数(例如 2、3、4) |
|
||
| model | string | 否 | `"auto"` | 使用的模型(例如 `auto`、具体模型名称) |
|
||
| faceEnhance | boolean | 否 | `false` | 在放大过程中应用人脸增强 |
|
||
| denoise | number | 否 | `0` | 降噪强度(0 = 关闭) |
|
||
| format | string | 否 | `"auto"` | 输出格式:`auto`、`png`、`jpg`、`webp`、`tiff`、`gif`、`avif`、`heic`、`heif`、`jxl` |
|
||
| quality | number | 否 | `95` | 输出质量(1-100) |
|
||
|
||
## 示例请求 {#example-request}
|
||
|
||
```bash
|
||
curl -X POST http://localhost:1349/api/v1/tools/image/upscale \
|
||
-F "file=@photo.jpg" \
|
||
-F 'settings={"scale":4,"model":"auto","faceEnhance":true,"format":"png"}'
|
||
```
|
||
|
||
## 响应 {#response}
|
||
|
||
### 初始响应(202 Accepted) {#initial-response-202-accepted}
|
||
|
||
```json
|
||
{
|
||
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
|
||
"async": true
|
||
}
|
||
```
|
||
|
||
### 进度(SSE,位于 `/api/v1/jobs/{jobId}/progress`) {#progress-sse-at-api-v1-jobs-jobid-progress}
|
||
|
||
```
|
||
event: progress
|
||
data: {"phase":"processing","stage":"Upscaling...","percent":60}
|
||
```
|
||
|
||
### 最终结果(通过 SSE) {#final-result-via-sse}
|
||
|
||
```json
|
||
{
|
||
"phase": "complete",
|
||
"percent": 100,
|
||
"result": {
|
||
"jobId": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
|
||
"downloadUrl": "/api/v1/download/{jobId}/photo_4x.png",
|
||
"previewUrl": "/api/v1/download/{jobId}/preview.webp",
|
||
"originalSize": 120000,
|
||
"processedSize": 2400000,
|
||
"width": 4096,
|
||
"height": 4096,
|
||
"method": "realesrgan-x4plus"
|
||
}
|
||
}
|
||
```
|
||
|
||
## 说明 {#notes}
|
||
|
||
- 需要安装 `upscale-enhance` 模型包(5-6 GB)。
|
||
- 可用时使用 Real-ESRGAN;如果 AI 模型不可用,则回退到 Lanczos 插值。
|
||
- `faceEnhance` 选项在放大过程中应用 GFPGAN 人脸修复,以获得更好的人脸质量。
|
||
- 对于非浏览器可预览的输出格式(HEIC、JXL、TIFF),会在主输出之外生成 WebP 预览。
|
||
- 通过自动解码支持 HEIC/HEIF、RAW、TGA、PSD、EXR 和 HDR 输入格式。
|