sd-prompts / app.py
Nikita Pavlichenko
Small fix
208deab
import gradio as gr
from transformers import pipeline
import numpy as np
from diffusers import DiffusionPipeline
prompt_writer = pipeline('text-generation', model='toloka/gpt2-large-rl-prompt-writing')
prompt_reward_model = pipeline('text-classification', model='toloka/prompts_reward_model')
pipe = DiffusionPipeline.from_pretrained("runwayml/stable-diffusion-v1-5")
def write_prompt(img_desc):
prompts = [p['generated_text'] for p in prompt_writer(img_desc + '</s>', max_new_tokens=100, num_return_sequences=2)]
scores = [p['score'] for p in prompt_reward_model(prompts, function_to_apply='none')]
return prompts[np.argmax(scores)].split('</s>')[1].strip()
def generate(text):
prompt = write_prompt(text)
img = pipe(prompt=prompt, num_inference_steps=50).images[0]
return img, prompt
with gr.Blocks() as demo:
with gr.Column(variant="panel"):
with gr.Row(variant="compact"):
text = gr.Textbox(
label="Enter your image description, e.g., \"a cat\"",
show_label=False,
max_lines=1,
placeholder="Enter your image description, e.g., \"a cat\"",
).style(
container=False,
)
btn = gr.Button("Generate image").style(full_width=False)
written_prompt = gr.outputs.Textbox(label="AI-written prompt")
gen_img = gr.outputs.Image(type="pil",
label="Generated image",
).style(object_fit="contain", height=512)
btn.click(generate, text, [gen_img, written_prompt])
if __name__ == "__main__":
demo.launch()