import gradio as gr import torch from PIL import Image from torchvision import transforms from diffusers import StableDiffusionPipeline, StableDiffusionImageVariationPipeline, DiffusionPipeline import numpy as np import pandas as pd import math from transformers import CLIPTextModel, CLIPTokenizer # model_id = "stabilityai/stable-diffusion-2-1-base" # text_model_id = "CompVis/stable-diffusion-v-1-4-original" # text_model_id = "CompVis/stable-diffusion-v1-4" text_model_id = "runwayml/stable-diffusion-v1-5" # text_model_id = "stabilityai/stable-diffusion-2-1-base" model_id = "lambdalabs/sd-image-variations-diffusers" clip_model_id = "openai/clip-vit-large-patch14-336" max_tabs = 5 input_images = [None for i in range(max_tabs)] input_prompts = [None for i in range(max_tabs)] embedding_plots = [None for i in range(max_tabs)] # global embedding_base64s embedding_base64s = [None for i in range(max_tabs)] # embedding_base64s = gr.State(value=[None for i in range(max_tabs)]) def image_to_embedding(input_im): tform = transforms.Compose([ transforms.ToTensor(), transforms.Resize( (224, 224), interpolation=transforms.InterpolationMode.BICUBIC, antialias=False, ), transforms.Normalize( [0.48145466, 0.4578275, 0.40821073], [0.26862954, 0.26130258, 0.27577711]), ]) inp = tform(input_im).to(device) dtype = next(pipe.image_encoder.parameters()).dtype image = inp.tile(1, 1, 1, 1).to(device=device, dtype=dtype) image_embeddings = pipe.image_encoder(image).image_embeds image_embeddings = image_embeddings[0] image_embeddings_np = image_embeddings.cpu().detach().numpy() return image_embeddings_np def prompt_to_embedding(prompt): # inputs = processor(prompt, images=imgs, return_tensors="pt", padding=True) inputs = processor(prompt, return_tensors="pt", padding='max_length', max_length=77) # labels = torch.tensor(labels) # prompt_tokens = inputs.input_ids[0] prompt_tokens = inputs.input_ids # image = inputs.pixel_values with torch.no_grad(): prompt_embededdings = model.get_text_features(prompt_tokens.to(device)) prompt_embededdings = prompt_embededdings[0].cpu().detach().numpy() return prompt_embededdings def embedding_to_image(embeddings): size = math.ceil(math.sqrt(embeddings.shape[0])) image_embeddings_square = np.pad(embeddings, (0, size**2 - embeddings.shape[0]), 'constant') image_embeddings_square.resize(size,size) embedding_image = Image.fromarray(image_embeddings_square, mode="L") return embedding_image def embedding_to_base64(embeddings): import base64 # ensure float16 embeddings = embeddings.astype(np.float16) embeddings_b64 = base64.urlsafe_b64encode(embeddings).decode() return embeddings_b64 def base64_to_embedding(embeddings_b64): import base64 embeddings = base64.urlsafe_b64decode(embeddings_b64) embeddings = np.frombuffer(embeddings, dtype=np.float16) # embeddings = torch.tensor(embeddings) return embeddings def main( # input_im, embeddings, scale=3.0, n_samples=4, steps=25, seed=0 ): if seed == None: seed = np.random.randint(2147483647) # generator = torch.Generator(device=device).manual_seed(int(seed)) generator = torch.Generator().manual_seed(int(seed)) # use cpu as does not work on mps embeddings = base64_to_embedding(embeddings) embeddings = torch.tensor(embeddings).to(device) images_list = pipe( # inp.tile(n_samples, 1, 1, 1), # [embeddings * n_samples], embeddings, guidance_scale=scale, num_inference_steps=steps, generator=generator, ) images = [] for i, image in enumerate(images_list["images"]): images.append(image) # images.append(embedding_image) return images def on_image_load_update_embeddings(image_data): # image to embeddings if image_data is None: embeddings = prompt_to_embedding('') embeddings_b64 = embedding_to_base64(embeddings) return gr.Text.update(embeddings_b64) embeddings = image_to_embedding(image_data) embeddings_b64 = embedding_to_base64(embeddings) return gr.Text.update(embeddings_b64) def on_prompt_change_update_embeddings(prompt): # prompt to embeddings if prompt is None or prompt == "": embeddings = prompt_to_embedding('') embeddings_b64 = embedding_to_base64(embeddings) return gr.Text.update(embedding_to_base64(embeddings)) embeddings = prompt_to_embedding(prompt) embeddings_b64 = embedding_to_base64(embeddings) return gr.Text.update(embeddings_b64) # def on_embeddings_changed_update_average_embeddings(last_embedding_base64): # def on_embeddings_changed_update_average_embeddings(embedding_base64s): def on_embeddings_changed_update_average_embeddings(embedding_base64s_state, embedding_base64, idx): # global embedding_base64s final_embedding = None num_embeddings = 0 embedding_base64s_state[idx] = embedding_base64 # for textbox in embedding_base64s: # embedding_base64 = textbox.value for embedding_base64 in embedding_base64s_state: if embedding_base64 is None or embedding_base64 == "": continue embedding = base64_to_embedding(embedding_base64) if final_embedding is None: final_embedding = embedding else: final_embedding = final_embedding + embedding num_embeddings += 1 if final_embedding is None: embeddings = prompt_to_embedding('') embeddings_b64 = embedding_to_base64(embeddings) return gr.Text.update(embeddings_b64) final_embedding = final_embedding / num_embeddings embeddings_b64 = embedding_to_base64(final_embedding) return gr.Text.update(embeddings_b64) def on_embeddings_changed_update_plot(embeddings_b64): # plot new embeddings if embeddings_b64 is None or embeddings_b64 == "": return gr.LinePlot.update() embeddings = base64_to_embedding(embeddings_b64) data = pd.DataFrame({ 'embedding': embeddings, 'index': [n for n in range(len(embeddings))]}) return gr.LinePlot.update(data, x="index", y="embedding", # color="country", title="Embeddings", # stroke_dash="cluster", # x_lim=[1950, 2010], tooltip=['index', 'embedding'], # stroke_dash_legend_title="Country Cluster", # height=300, width=embeddings.shape[0]) device = torch.device("mps" if torch.backends.mps.is_available() else "cuda:0" if torch.cuda.is_available() else "cpu") pipe = StableDiffusionPipeline.from_pretrained( model_id, custom_pipeline="pipeline.py", torch_dtype=torch.float16, # , revision="fp16", requires_safety_checker = False, safety_checker=None, text_encoder = CLIPTextModel, tokenizer = CLIPTokenizer, ) pipe = pipe.to(device) from transformers import AutoProcessor, AutoModel processor = AutoProcessor.from_pretrained(clip_model_id) model = AutoModel.from_pretrained(clip_model_id) model = model.to(device) examples = [ ["frog.png", 3, 1, 25, 0], ["img0.jpg", 3, 1, 25, 0], ["img1.jpg", 3, 1, 25, 0], ["img2.jpg", 3, 1, 25, 0], ["img3.jpg", 3, 1, 25, 0], ] with gr.Blocks() as demo: with gr.Row(): for i in range(max_tabs): with gr.Tab(f"Input {i}"): with gr.Row(): with gr.Column(scale=1, min_width=240): input_images[i] = gr.Image() with gr.Column(scale=3, min_width=600): embedding_plots[i] = gr.LinePlot(show_label=False).style(container=False) # input_image.change(on_image_load, inputs= [input_image, plot]) with gr.Row(): with gr.Column(scale=1, min_width=240): input_prompts[i] = gr.Textbox() with gr.Column(scale=3, min_width=600): with gr.Accordion("Embeddings", open=False): embedding_base64s[i] = gr.Textbox(show_label=False) with gr.Row(): average_embedding_plot = gr.LinePlot(show_label=False).style(container=False) with gr.Row(): average_embedding_base64 = gr.Textbox(show_label=False) with gr.Row(): with gr.Column(scale=1, min_width=200): scale = gr.Slider(0, 25, value=3, step=1, label="Guidance scale") with gr.Column(scale=1, min_width=200): n_samples = gr.Slider(1, 4, value=1, step=1, label="Number images") with gr.Column(scale=1, min_width=200): steps = gr.Slider(5, 50, value=25, step=5, label="Steps") with gr.Column(scale=1, min_width=200): seed = gr.Number(None, label="Seed", precision=0) with gr.Row(): submit = gr.Button("Submit") with gr.Row(): output = gr.Gallery(label="Generated variations") embedding_base64s_state = gr.State(value=[None for i in range(max_tabs)]) for i in range(max_tabs): input_images[i].change(on_image_load_update_embeddings, input_images[i], [embedding_base64s[i]]) input_prompts[i].submit(on_prompt_change_update_embeddings, input_prompts[i], [embedding_base64s[i]]) embedding_base64s[i].change(on_embeddings_changed_update_plot, embedding_base64s[i], [embedding_plots[i]]) # embedding_plots[i].change(on_plot_changed, embedding_base64s[i], average_embedding_base64) # embedding_plots[i].change(on_embeddings_changed_update_average_embeddings, embedding_base64s[i], average_embedding_base64) idx_state = gr.State(value=i) embedding_base64s[i].change(on_embeddings_changed_update_average_embeddings, [embedding_base64s_state, embedding_base64s[i], idx_state], average_embedding_base64) average_embedding_base64.change(on_embeddings_changed_update_plot, average_embedding_base64, average_embedding_plot) # submit.click(main, inputs= [embedding_base64s[0], scale, n_samples, steps, seed], outputs=output) submit.click(main, inputs= [average_embedding_base64, scale, n_samples, steps, seed], outputs=output) output.style(grid=2) if __name__ == "__main__": demo.launch()