import os import numpy as np import random from pathlib import Path from PIL import Image import streamlit as st from huggingface_hub import InferenceClient, AsyncInferenceClient from gradio_client import Client, handle_file import asyncio MAX_SEED = np.iinfo(np.int32).max HF_TOKEN = os.environ.get("HF_TOKEN") HF_TOKEN_UPSCALER = os.environ.get("HF_TOKEN_UPSCALER") client = AsyncInferenceClient() llm_client = InferenceClient("mistralai/Mixtral-8x7B-Instruct-v0.1") DATA_PATH = Path("./data") DATA_PATH.mkdir(exist_ok=True) def enable_lora(lora_add, basemodel): return lora_add if lora_add else basemodel async def generate_image(combined_prompt, model, width, height, scales, steps, seed): try: if seed == -1: seed = random.randint(0, MAX_SEED) seed = int(seed) image = await client.text_to_image( prompt=combined_prompt, height=height, width=width, guidance_scale=scales, num_inference_steps=steps, model=model ) return image, seed except Exception as e: return f"Error al generar imagen: {e}", None def get_upscale_finegrain(prompt, img_path, upscale_factor): try: client = Client("finegrain/finegrain-image-enhancer", hf_token=HF_TOKEN_UPSCALER) result = client.predict( input_image=handle_file(img_path), prompt=prompt, negative_prompt="", seed=42, upscale_factor=upscale_factor, controlnet_scale=0.6, controlnet_decay=1, condition_scale=6, tile_width=112, tile_height=144, denoise_strength=0.35, num_inference_steps=18, solver="DDIM", api_name="/process" ) return result[1] if isinstance(result, list) and len(result) > 1 else None except Exception as e: return None async def gen(prompt, basemodel, width, height, scales, steps, seed, upscale_factor, process_upscale, lora_model, process_lora): model = enable_lora(lora_model, basemodel) if process_lora else basemodel improved_prompt = await improve_prompt(prompt) combined_prompt = f"{prompt} {improved_prompt}" if seed == -1: seed = random.randint(0, MAX_SEED) seed = int(seed) progress_bar = st.progress(0) progress_bar.progress(10) image, seed = await generate_image(combined_prompt, model, width, height, scales, steps, seed) progress_bar.progress(50) if isinstance(image, str) and image.startswith("Error"): progress_bar.empty() return [image, None, combined_prompt] image_path = DATA_PATH / f"image_{seed}.jpg" image.save(image_path, format="JPEG") prompt_file_path = DATA_PATH / f"prompt_{seed}.txt" with open(prompt_file_path, "w") as prompt_file: prompt_file.write(combined_prompt) if process_upscale: upscale_image_path = get_upscale_finegrain(combined_prompt, image_path, upscale_factor) if upscale_image_path: upscale_image = Image.open(upscale_image_path) upscale_image.save(DATA_PATH / f"upscale_image_{seed}.jpg", format="JPEG") progress_bar.progress(100) image_path.unlink() return [str(DATA_PATH / f"upscale_image_{seed}.jpg"), str(prompt_file_path)] else: progress_bar.empty() return [str(image_path), str(prompt_file_path)] else: progress_bar.progress(100) return [str(image_path), str(prompt_file_path)] async def improve_prompt(prompt): try: instruction = ("With this idea, describe in English a detailed txt2img prompt in a single paragraph of up to 200 characters maximum, developing atmosphere, characters, lighting, and cameras.") formatted_prompt = f"{prompt}: {instruction}" response = llm_client.text_generation(formatted_prompt, max_new_tokens=200) improved_text = response['generated_text'].strip() if 'generated_text' in response else response.strip() return improved_text except Exception as e: return f"Error mejorando el prompt: {e}" def get_storage(): files = list(DATA_PATH.glob("*.jpg")) usage = sum(file.stat().st_size for file in files) return files, f"Uso total: {usage/(1024.0 ** 3):.3f}GB" def get_prompts(): prompt_files = list(DATA_PATH.glob("*.txt")) return {file.stem.replace("prompt_", ""): file for file in prompt_files} def run_gen(prompt, basemodel, width, height, scales, steps, seed, upscale_factor, process_upscale, lora_model, process_lora): loop = asyncio.new_event_loop() asyncio.set_event_loop(loop) return loop.run_until_complete(gen(prompt, basemodel, width, height, scales, steps, seed, upscale_factor, process_upscale, lora_model, process_lora)) st.set_page_config(layout="wide") st.title("Generador de Imágenes FLUX") prompt = st.sidebar.text_input("Descripción de la imagen") basemodel = st.sidebar.selectbox("Modelo Base", ["black-forest-labs/FLUX.1-schnell", "black-forest-labs/FLUX.1-DEV"]) lora_model = st.sidebar.selectbox("LORA Realismo", ["Shakker-Labs/FLUX.1-dev-LoRA-add-details", "XLabs-AI/flux-RealismLora"]) format_option = st.sidebar.selectbox("Formato", ["9:16", "16:9"]) process_lora = st.sidebar.checkbox("Procesar LORA") process_upscale = st.sidebar.checkbox("Procesar Escalador") if format_option == "9:16": width = st.sidebar.slider("Ancho", 512, 720, 720, step=8) height = st.sidebar.slider("Alto", 912, 1280, 1280, step=8) else: width = st.sidebar.slider("Ancho", 512, 1280, 1280, step=8) height = st.sidebar.slider("Alto", 512, 720, 720, step=8) upscale_factor = st.sidebar.selectbox("Factor de Escala", [2, 4, 8], index=0) scales = st.sidebar.slider("Escalado", 1, 20, 10) steps = st.sidebar.slider("Pasos", 1, 100, 20) seed = st.sidebar.number_input("Semilla", value=-1) if st.sidebar.button("Mejorar prompt"): improved_prompt = asyncio.run(improve_prompt(prompt)) st.session_state.improved_prompt = improved_prompt st.write(f"{improved_prompt}") if st.sidebar.button("Generar Imagen"): with st.spinner("Generando imagen..."): image_paths, prompt_file = run_gen(st.session_state.get('improved_prompt', prompt), basemodel, width, height, scales, steps, seed, upscale_factor, process_upscale, lora_model, process_lora) if image_paths and isinstance(image_paths[0], str) and Path(image_paths[0]).exists(): st.image(image_paths[0], caption="Imagen Generada") prompt_text = Path(prompt_file).read_text() if prompt_file else "No disponible" st.write(f"Prompt utilizado: {prompt_text}") files, usage = get_storage() st.text(usage) cols = st.columns(6) prompts = get_prompts() for idx, file in enumerate(files): with cols[idx % 6]: image = Image.open(file) prompt_file = prompts.get(file.stem.replace("image_", ""), None) prompt_text = Path(prompt_file).read_text() if prompt_file else "No disponible" st.image(image, caption=f"Imagen {idx+1}") if st.button(f"Eliminar Imagen {idx+1}", key=f"delete_{idx}"): file.unlink() st.experimental_rerun()