| from typing import List, Any |
| import torch |
| from diffusers import StableCascadePriorPipeline, StableCascadeDecoderPipeline |
|
|
| |
| device = torch.device('cuda' if torch.cuda.is_available() else 'cpu') |
| if device.type != 'cuda': |
| raise ValueError("Se requiere ejecutar en GPU") |
|
|
| |
| dtype = torch.bfloat16 if torch.cuda.get_device_capability(device.index)[0] >= 8 else torch.float16 |
|
|
| class EndpointHandler(): |
| def __init__(self): |
| |
| pass |
|
|
| def __call__(self, data: Any) -> List[Any]: |
| |
| num_images_per_prompt = 1 |
|
|
| |
| prior = StableCascadePriorPipeline.from_pretrained("stabilityai/stable-cascade-prior", torch_dtype=dtype).to(device) |
| decoder = StableCascadeDecoderPipeline.from_pretrained("stabilityai/stable-cascade", torch_dtype=dtype).to(device) |
|
|
| prompt = data.get("inputs", "Una imagen interesante") |
| negative_prompt = data.get("negative_prompt", "") |
|
|
| prior_output = prior( |
| prompt=prompt, |
| height=512, |
| width=512, |
| negative_prompt=negative_prompt, |
| guidance_scale=7.5, |
| num_inference_steps=50, |
| num_images_per_prompt=num_images_per_prompt, |
| ) |
|
|
| decoder_output = decoder( |
| image_embeddings=prior_output["image_embeddings"].half(), |
| prompt=prompt, |
| negative_prompt=negative_prompt, |
| guidance_scale=7.5, |
| output_type="pil", |
| num_inference_steps=20 |
| ) |
|
|
| |
| return [decoder_output.images[0]] |
|
|