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AnyImage/docs/upscale.md
nan 0cf04a13c6 feat: Implement upscale functionality with ONNX models
- Added upscale operator to handle image upscaling by 4x using AI models.
- Introduced new jobs for upscale processing in the server, including debug and standard upscale jobs.
- Created a new ONNX model handler for upscale operations, supporting tiled inference and resource management.
- Updated tests to cover new upscale functionality, including input validation and output verification.
- Added documentation for the upscale feature, detailing usage and model options.
2026-08-23 20:34:35 +08:00

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# 高清放大
Upscale 用 ONNX 模型把 Image Empty 的图片放大 4 倍,不创建网格。它支持单图、Movie 和 Image Sequence,并保留源 Alpha。
## 使用
1. 在 AnyImage 扩展偏好设置中选择 **Default Upscale Model**。
2. 按需要设置 **Maximum Upscale Size**;默认 4096 px,最高 8192 px。
3. 选中 Image Empty,在右键 **AnyImage** 菜单中点击 **Upscale**。
较大的输入会先按比例缩小,使输出不超过尺寸和总像素上限。完成后,当前 Empty 会改用名称以 `.upscale` 结尾的结果图片。
## 模型选择
- **Real-ESRGAN General WDN x4v3**:默认模型,速度快,细节处理较保守。
- **SAFMN Real x4**:速度与细节较均衡。
- **Real-ESRGAN x4plus**:生成的细节更明显。
后两项可在扩展偏好设置中按需下载。
对高清结果再次执行 Upscale 时,AnyImage 会从最初的原图重新生成并替换当前结果,不会连续放大已有高清图。
如果显存或内存不足,请降低 **Maximum Upscale Size**,或改用 CPU。