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|
|
| # DiffEdit |
|
|
| [[open-in-colab]] |
|
|
| μ΄λ―Έμ§ νΈμ§μ νλ €λ©΄ μΌλ°μ μΌλ‘ νΈμ§ν μμμ λ§μ€ν¬λ₯Ό μ 곡ν΄μΌ ν©λλ€. DiffEditλ ν
μ€νΈ 쿼리λ₯Ό κΈ°λ°μΌλ‘ λ§μ€ν¬λ₯Ό μλμΌλ‘ μμ±νλ―λ‘ μ΄λ―Έμ§ νΈμ§ μννΈμ¨μ΄ μμ΄λ λ§μ€ν¬λ₯Ό λ§λ€κΈ°κ° μ λ°μ μΌλ‘ λ μ¬μμ§λλ€. DiffEdit μκ³ λ¦¬μ¦μ μΈ λ¨κ³λ‘ μλν©λλ€: |
|
|
| 1. Diffusion λͺ¨λΈμ΄ μΌλΆ 쿼리 ν
μ€νΈμ μ°Έμ‘° ν
μ€νΈλ₯Ό 쑰건λΆλ‘ μ΄λ―Έμ§μ λ
Έμ΄μ¦λ₯Ό μ κ±°νμ¬ μ΄λ―Έμ§μ μ¬λ¬ μμμ λν΄ μλ‘ λ€λ₯Έ λ
Έμ΄μ¦ μΆμ μΉλ₯Ό μμ±νκ³ , κ·Έ μ°¨μ΄λ₯Ό μ¬μ©νμ¬ μΏΌλ¦¬ ν
μ€νΈμ μΌμΉνλλ‘ μ΄λ―Έμ§μ μ΄λ μμμ λ³κ²½ν΄μΌ νλμ§ μλ³νκΈ° μν λ§μ€ν¬λ₯Ό μΆλ‘ ν©λλ€. |
| 2. μ
λ ₯ μ΄λ―Έμ§κ° DDIMμ μ¬μ©νμ¬ μ μ¬ κ³΅κ°μΌλ‘ μΈμ½λ©λ©λλ€. |
| 3. λ§μ€ν¬ μΈλΆμ ν½μ
μ΄ μ
λ ₯ μ΄λ―Έμ§μ λμΌνκ² μ μ§λλλ‘ λ§μ€ν¬λ₯Ό κ°μ΄λλ‘ μ¬μ©νμ¬ ν
μ€νΈ 쿼리μ μ‘°κ±΄μ΄ μ§μ λ diffusion λͺ¨λΈλ‘ latentsλ₯Ό λμ½λ©ν©λλ€. |
|
|
| μ΄ κ°μ΄λμμλ λ§μ€ν¬λ₯Ό μλμΌλ‘ λ§λ€μ§ μκ³ DiffEditλ₯Ό μ¬μ©νμ¬ μ΄λ―Έμ§λ₯Ό νΈμ§νλ λ°©λ²μ μ€λͺ
ν©λλ€. |
|
|
| μμνκΈ° μ μ λ€μ λΌμ΄λΈλ¬λ¦¬κ° μ€μΉλμ΄ μλμ§ νμΈνμΈμ: |
|
|
| ```py |
| # Colabμμ νμν λΌμ΄λΈλ¬λ¦¬λ₯Ό μ€μΉνκΈ° μν΄ μ£Όμμ μ μΈνμΈμ |
| #!pip install -q diffusers transformers accelerate |
| ``` |
|
|
| [`StableDiffusionDiffEditPipeline`]μλ μ΄λ―Έμ§ λ§μ€ν¬μ λΆλΆμ μΌλ‘ λ°μ λ latents μ§ν©μ΄ νμν©λλ€. μ΄λ―Έμ§ λ§μ€ν¬λ [`~StableDiffusionDiffEditPipeline.generate_mask`] ν¨μμμ μμ±λλ©°, λ κ°μ νλΌλ―Έν°μΈ `source_prompt`μ `target_prompt`κ° ν¬ν¨λ©λλ€. μ΄ λ§€κ°λ³μλ μ΄λ―Έμ§μμ 무μμ νΈμ§ν μ§ κ²°μ ν©λλ€. μλ₯Ό λ€μ΄, *κ³ΌμΌ* ν κ·Έλ¦μ *λ°°* ν κ·Έλ¦μΌλ‘ λ³κ²½νλ €λ©΄ λ€μκ³Ό κ°μ΄ νμΈμ: |
|
|
| ```py |
| source_prompt = "a bowl of fruits" |
| target_prompt = "a bowl of pears" |
| ``` |
|
|
| λΆλΆμ μΌλ‘ λ°μ λ latentsλ [`~StableDiffusionDiffEditPipeline.invert`] ν¨μμμ μμ±λλ©°, μΌλ°μ μΌλ‘ μ΄λ―Έμ§λ₯Ό μ€λͺ
νλ `prompt` λλ *μΊ‘μ
*μ ν¬ν¨νλ κ²μ΄ inverse latent sampling νλ‘μΈμ€λ₯Ό κ°μ΄λνλ λ° λμμ΄ λ©λλ€. μΊ‘μ
μ μ’
μ’
`source_prompt`κ° λ μ μμ§λ§, λ€λ₯Έ ν
μ€νΈ μ€λͺ
μΌλ‘ μμ λ‘κ² μ€νν΄ λ³΄μΈμ! |
|
|
| νμ΄νλΌμΈ, μ€μΌμ€λ¬, μ μ€μΌμ€λ¬λ₯Ό λΆλ¬μ€κ³ λ©λͺ¨λ¦¬ μ¬μ©λμ μ€μ΄κΈ° μν΄ λͺ κ°μ§ μ΅μ νλ₯Ό νμ±νν΄ λ³΄κ² μ΅λλ€: |
|
|
| ```py |
| import torch |
| from diffusers import DDIMScheduler, DDIMInverseScheduler, StableDiffusionDiffEditPipeline |
| |
| pipeline = StableDiffusionDiffEditPipeline.from_pretrained( |
| "stabilityai/stable-diffusion-2-1", |
| torch_dtype=torch.float16, |
| safety_checker=None, |
| use_safetensors=True, |
| ) |
| pipeline.scheduler = DDIMScheduler.from_config(pipeline.scheduler.config) |
| pipeline.inverse_scheduler = DDIMInverseScheduler.from_config(pipeline.scheduler.config) |
| pipeline.enable_model_cpu_offload() |
| pipeline.enable_vae_slicing() |
| ``` |
|
|
| μμ νκΈ° μν μ΄λ―Έμ§λ₯Ό λΆλ¬μ΅λλ€: |
|
|
| ```py |
| from diffusers.utils import load_image, make_image_grid |
| |
| img_url = "https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png" |
| raw_image = load_image(img_url).resize((768, 768)) |
| raw_image |
| ``` |
|
|
| μ΄λ―Έμ§ λ§μ€ν¬λ₯Ό μμ±νκΈ° μν΄ [`~StableDiffusionDiffEditPipeline.generate_mask`] ν¨μλ₯Ό μ¬μ©ν©λλ€. μ΄λ―Έμ§μμ νΈμ§ν λ΄μ©μ μ§μ νκΈ° μν΄ `source_prompt`μ `target_prompt`λ₯Ό μ λ¬ν΄μΌ ν©λλ€: |
|
|
| ```py |
| from PIL import Image |
| |
| source_prompt = "a bowl of fruits" |
| target_prompt = "a basket of pears" |
| mask_image = pipeline.generate_mask( |
| image=raw_image, |
| source_prompt=source_prompt, |
| target_prompt=target_prompt, |
| ) |
| Image.fromarray((mask_image.squeeze()*255).astype("uint8"), "L").resize((768, 768)) |
| ``` |
|
|
| λ€μμΌλ‘, λ°μ λ latentsλ₯Ό μμ±νκ³ μ΄λ―Έμ§λ₯Ό λ¬μ¬νλ μΊ‘μ
μ μ λ¬ν©λλ€: |
|
|
| ```py |
| inv_latents = pipeline.invert(prompt=source_prompt, image=raw_image).latents |
| ``` |
|
|
| λ§μ§λ§μΌλ‘, μ΄λ―Έμ§ λ§μ€ν¬μ λ°μ λ latentsλ₯Ό νμ΄νλΌμΈμ μ λ¬ν©λλ€. `target_prompt`λ μ΄μ `prompt`κ° λλ©°, `source_prompt`λ `negative_prompt`λ‘ μ¬μ©λ©λλ€. |
|
|
| ```py |
| output_image = pipeline( |
| prompt=target_prompt, |
| mask_image=mask_image, |
| image_latents=inv_latents, |
| negative_prompt=source_prompt, |
| ).images[0] |
| mask_image = Image.fromarray((mask_image.squeeze()*255).astype("uint8"), "L").resize((768, 768)) |
| make_image_grid([raw_image, mask_image, output_image], rows=1, cols=3) |
| ``` |
|
|
| <div class="flex gap-4"> |
| <div> |
| <img class="rounded-xl" src="https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png"/> |
| <figcaption class="mt-2 text-center text-sm text-gray-500">original image</figcaption> |
| </div> |
| <div> |
| <img class="rounded-xl" src="https://github.com/Xiang-cd/DiffEdit-stable-diffusion/blob/main/assets/target.png?raw=true"/> |
| <figcaption class="mt-2 text-center text-sm text-gray-500">edited image</figcaption> |
| </div> |
| </div> |
| |
| ## Sourceμ target μλ² λ© μμ±νκΈ° |
|
|
| Sourceμ target μλ² λ©μ μλμΌλ‘ μμ±νλ λμ [Flan-T5](https://huggingface.co/docs/transformers/model_doc/flan-t5) λͺ¨λΈμ μ¬μ©νμ¬ μλμΌλ‘ μμ±ν μ μμ΅λλ€. |
|
|
| Flan-T5 λͺ¨λΈκ³Ό ν ν¬λμ΄μ λ₯Ό π€ Transformers λΌμ΄λΈλ¬λ¦¬μμ λΆλ¬μ΅λλ€: |
|
|
| ```py |
| import torch |
| from transformers import AutoTokenizer, T5ForConditionalGeneration |
| |
| tokenizer = AutoTokenizer.from_pretrained("google/flan-t5-large") |
| model = T5ForConditionalGeneration.from_pretrained("google/flan-t5-large", device_map="auto", torch_dtype=torch.float16) |
| ``` |
|
|
| λͺ¨λΈμ ν둬ννΈν sourceμ target ν둬ννΈλ₯Ό μμ±νκΈ° μν΄ μ΄κΈ° ν
μ€νΈλ€μ μ 곡ν©λλ€. |
|
|
| ```py |
| source_concept = "bowl" |
| target_concept = "basket" |
| |
| source_text = f"Provide a caption for images containing a {source_concept}. " |
| "The captions should be in English and should be no longer than 150 characters." |
| |
| target_text = f"Provide a caption for images containing a {target_concept}. " |
| "The captions should be in English and should be no longer than 150 characters." |
| ``` |
|
|
| λ€μμΌλ‘, ν둬ννΈλ€μ μμ±νκΈ° μν΄ μ νΈλ¦¬ν° ν¨μλ₯Ό μμ±ν©λλ€. |
|
|
| ```py |
| @torch.no_grad() |
| def generate_prompts(input_prompt): |
| input_ids = tokenizer(input_prompt, return_tensors="pt").input_ids.to("cuda") |
| |
| outputs = model.generate( |
| input_ids, temperature=0.8, num_return_sequences=16, do_sample=True, max_new_tokens=128, top_k=10 |
| ) |
| return tokenizer.batch_decode(outputs, skip_special_tokens=True) |
| |
| source_prompts = generate_prompts(source_text) |
| target_prompts = generate_prompts(target_text) |
| print(source_prompts) |
| print(target_prompts) |
| ``` |
|
|
| <Tip> |
|
|
| λ€μν νμ§μ ν
μ€νΈλ₯Ό μμ±νλ μ λ΅μ λν΄ μμΈν μμλ³΄λ €λ©΄ [μμ± μ λ΅](https://huggingface.co/docs/transformers/main/en/generation_strategies) κ°μ΄λλ₯Ό μ°Έμ‘°νμΈμ. |
|
|
| </Tip> |
|
|
| ν
μ€νΈ μΈμ½λ©μ μν΄ [`StableDiffusionDiffEditPipeline`]μμ μ¬μ©νλ ν
μ€νΈ μΈμ½λ λͺ¨λΈμ λΆλ¬μ΅λλ€. ν
μ€νΈ μΈμ½λλ₯Ό μ¬μ©νμ¬ ν
μ€νΈ μλ² λ©μ κ³μ°ν©λλ€: |
|
|
| ```py |
| import torch |
| from diffusers import StableDiffusionDiffEditPipeline |
| |
| pipeline = StableDiffusionDiffEditPipeline.from_pretrained( |
| "stabilityai/stable-diffusion-2-1", torch_dtype=torch.float16, use_safetensors=True |
| ) |
| pipeline.enable_model_cpu_offload() |
| pipeline.enable_vae_slicing() |
| |
| @torch.no_grad() |
| def embed_prompts(sentences, tokenizer, text_encoder, device="cuda"): |
| embeddings = [] |
| for sent in sentences: |
| text_inputs = tokenizer( |
| sent, |
| padding="max_length", |
| max_length=tokenizer.model_max_length, |
| truncation=True, |
| return_tensors="pt", |
| ) |
| text_input_ids = text_inputs.input_ids |
| prompt_embeds = text_encoder(text_input_ids.to(device), attention_mask=None)[0] |
| embeddings.append(prompt_embeds) |
| return torch.concatenate(embeddings, dim=0).mean(dim=0).unsqueeze(0) |
| |
| source_embeds = embed_prompts(source_prompts, pipeline.tokenizer, pipeline.text_encoder) |
| target_embeds = embed_prompts(target_prompts, pipeline.tokenizer, pipeline.text_encoder) |
| ``` |
|
|
| λ§μ§λ§μΌλ‘, μλ² λ©μ [`~StableDiffusionDiffEditPipeline.generate_mask`] λ° [`~StableDiffusionDiffEditPipeline.invert`] ν¨μμ νμ΄νλΌμΈμ μ λ¬νμ¬ μ΄λ―Έμ§λ₯Ό μμ±ν©λλ€: |
|
|
| ```diff |
| from diffusers import DDIMInverseScheduler, DDIMScheduler |
| from diffusers.utils import load_image, make_image_grid |
| from PIL import Image |
| |
| pipeline.scheduler = DDIMScheduler.from_config(pipeline.scheduler.config) |
| pipeline.inverse_scheduler = DDIMInverseScheduler.from_config(pipeline.scheduler.config) |
| |
| img_url = "https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png" |
| raw_image = load_image(img_url).resize((768, 768)) |
| |
| mask_image = pipeline.generate_mask( |
| image=raw_image, |
| - source_prompt=source_prompt, |
| - target_prompt=target_prompt, |
| + source_prompt_embeds=source_embeds, |
| + target_prompt_embeds=target_embeds, |
| ) |
| |
| inv_latents = pipeline.invert( |
| - prompt=source_prompt, |
| + prompt_embeds=source_embeds, |
| image=raw_image, |
| ).latents |
| |
| output_image = pipeline( |
| mask_image=mask_image, |
| image_latents=inv_latents, |
| - prompt=target_prompt, |
| - negative_prompt=source_prompt, |
| + prompt_embeds=target_embeds, |
| + negative_prompt_embeds=source_embeds, |
| ).images[0] |
| mask_image = Image.fromarray((mask_image.squeeze()*255).astype("uint8"), "L") |
| make_image_grid([raw_image, mask_image, output_image], rows=1, cols=3) |
| ``` |
|
|
| ## λ°μ μ μν μΊ‘μ
μμ±νκΈ° |
|
|
| `source_prompt`λ₯Ό μΊ‘μ
μΌλ‘ μ¬μ©νμ¬ λΆλΆμ μΌλ‘ λ°μ λ latentsλ₯Ό μμ±ν μ μμ§λ§, [BLIP](https://huggingface.co/docs/transformers/model_doc/blip) λͺ¨λΈμ μ¬μ©νμ¬ μΊ‘μ
μ μλμΌλ‘ μμ±ν μλ μμ΅λλ€. |
|
|
| π€ Transformers λΌμ΄λΈλ¬λ¦¬μμ BLIP λͺ¨λΈκ³Ό νλ‘μΈμλ₯Ό λΆλ¬μ΅λλ€: |
|
|
| ```py |
| import torch |
| from transformers import BlipForConditionalGeneration, BlipProcessor |
| |
| processor = BlipProcessor.from_pretrained("Salesforce/blip-image-captioning-base") |
| model = BlipForConditionalGeneration.from_pretrained("Salesforce/blip-image-captioning-base", torch_dtype=torch.float16, low_cpu_mem_usage=True) |
| ``` |
|
|
| μ
λ ₯ μ΄λ―Έμ§μμ μΊ‘μ
μ μμ±νλ μ νΈλ¦¬ν° ν¨μλ₯Ό λ§λλλ€: |
|
|
| ```py |
| @torch.no_grad() |
| def generate_caption(images, caption_generator, caption_processor): |
| text = "a photograph of" |
| |
| inputs = caption_processor(images, text, return_tensors="pt").to(device="cuda", dtype=caption_generator.dtype) |
| caption_generator.to("cuda") |
| outputs = caption_generator.generate(**inputs, max_new_tokens=128) |
| |
| # μΊ‘μ
generator μ€νλ‘λ |
| caption_generator.to("cpu") |
| |
| caption = caption_processor.batch_decode(outputs, skip_special_tokens=True)[0] |
| return caption |
| ``` |
|
|
| μ
λ ₯ μ΄λ―Έμ§λ₯Ό λΆλ¬μ€κ³ `generate_caption` ν¨μλ₯Ό μ¬μ©νμ¬ ν΄λΉ μ΄λ―Έμ§μ λν μΊ‘μ
μ μμ±ν©λλ€: |
|
|
| ```py |
| from diffusers.utils import load_image |
| |
| img_url = "https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png" |
| raw_image = load_image(img_url).resize((768, 768)) |
| caption = generate_caption(raw_image, model, processor) |
| ``` |
|
|
| <div class="flex justify-center"> |
| <figure> |
| <img class="rounded-xl" src="https://github.com/Xiang-cd/DiffEdit-stable-diffusion/raw/main/assets/origin.png"/> |
| <figcaption class="text-center">generated caption: "a photograph of a bowl of fruit on a table"</figcaption> |
| </figure> |
| </div> |
| |
| μ΄μ μΊ‘μ
μ [`~StableDiffusionDiffEditPipeline.invert`] ν¨μμ λμ λΆλΆμ μΌλ‘ λ°μ λ latentsλ₯Ό μμ±ν μ μμ΅λλ€! |
|
|