Implementation of Stable Diffusion with Aesthetic Gradients

modules/aesthetic_clip.py

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+import itertools
+import os
+from pathlib import Path
+import html
+import gc
+
+import gradio as gr
+import torch
+from PIL import Image
+from modules import shared
+from modules.shared import device, aesthetic_embeddings
+from transformers import CLIPModel, CLIPProcessor
+
+from tqdm.auto import tqdm
+
+
+def get_all_images_in_folder(folder):
+    return [os.path.join(folder, f) for f in os.listdir(folder) if
+            os.path.isfile(os.path.join(folder, f)) and check_is_valid_image_file(f)]
+
+
+def check_is_valid_image_file(filename):
+    return filename.lower().endswith(('.png', '.jpg', '.jpeg'))
+
+
+def batched(dataset, total, n=1):
+    for ndx in range(0, total, n):
+        yield [dataset.__getitem__(i) for i in range(ndx, min(ndx + n, total))]
+
+
+def iter_to_batched(iterable, n=1):
+    it = iter(iterable)
+    while True:
+        chunk = tuple(itertools.islice(it, n))
+        if not chunk:
+            return
+        yield chunk
+
+
+def generate_imgs_embd(name, folder, batch_size):
+    # clipModel = CLIPModel.from_pretrained(
+    #     shared.sd_model.cond_stage_model.clipModel.name_or_path
+    # )
+    model = CLIPModel.from_pretrained(shared.sd_model.cond_stage_model.clipModel.name_or_path).to(device)
+    processor = CLIPProcessor.from_pretrained(shared.sd_model.cond_stage_model.clipModel.name_or_path)
+
+    with torch.no_grad():
+        embs = []
+        for paths in tqdm(iter_to_batched(get_all_images_in_folder(folder), batch_size),
+                          desc=f"Generating embeddings for {name}"):
+            if shared.state.interrupted:
+                break
+            inputs = processor(images=[Image.open(path) for path in paths], return_tensors="pt").to(device)
+            outputs = model.get_image_features(**inputs).cpu()
+            embs.append(torch.clone(outputs))
+            inputs.to("cpu")
+            del inputs, outputs
+
+        embs = torch.cat(embs, dim=0).mean(dim=0, keepdim=True)
+
+        # The generated embedding will be located here
+        path = str(Path(shared.cmd_opts.aesthetic_embeddings_dir) / f"{name}.pt")
+        torch.save(embs, path)
+
+        model = model.cpu()
+        del model
+        del processor
+        del embs
+        gc.collect()
+        torch.cuda.empty_cache()
+        res = f"""
+        Done generating embedding for {name}!
+        Hypernetwork saved to {html.escape(path)}
+        """
+        shared.update_aesthetic_embeddings()
+        return gr.Dropdown(sorted(aesthetic_embeddings.keys()), label="Imgs embedding",
+                           value=sorted(aesthetic_embeddings.keys())[0] if len(
+                               aesthetic_embeddings) > 0 else None), res, ""