kandinsky-2-1-img2img / handler.py
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from diffusers import AutoPipelineForImage2Image
import torch
from typing import Dict, Any
from PIL import Image
from io import BytesIO
import base64
class EndpointHandler():
def __init__(self, path="."):
if torch.cuda.is_available():
device = "cuda"
else:
device = "cpu"
self._pipe = AutoPipelineForImage2Image.from_pretrained(path, torch_dtype=torch.float16).to(device)
def __call__(self, data: Dict[str, Any]) -> list[Dict[str, Any]]:
inputs = data.pop("inputs", data)
params = {"prompt": inputs.get("prompt", ""),
"image": Image.open(BytesIO(base64.b64decode(inputs['image']))),
"strength": float(inputs.get("strength", 0.3)),
"guidance_scale": float(inputs.get("guidance_scale", 10)),
"height": 768,
"width": 768}
img: Image = self._pipe(**params).images[0]
stream = BytesIO()
img.save(stream, format="jpeg")
res = {"status": 200,
"image": base64.b64encode(stream.getvalue()).decode("utf8")
}
return res
if __name__ == "__main__":
h = EndpointHandler()
v = h({})
print(v)