| """Abstract image-edit backend interface.""" | |
| from __future__ import annotations | |
| from abc import ABC, abstractmethod | |
| from PIL import Image | |
| class ImageEditBackend(ABC): | |
| """Common interface for every Qwen Image Edit engine.""" | |
| #: Short identifier stored in dataset metadata. | |
| source: str = "image_edit" | |
| def prepare(self) -> None: | |
| """Validate credentials / load models. Must raise if unusable.""" | |
| def edit( | |
| self, | |
| image: Image.Image, | |
| prompt: str, | |
| seed: int, | |
| num_inference_steps: int, | |
| true_guidance_scale: float, | |
| ) -> Image.Image: | |
| """Return an edited copy of ``image`` following ``prompt``. | |
| An empty ``prompt`` should return the (resized) original image. | |
| """ | |