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Diffree

Official PyTorch implement of paper "Diffree: Text-Guided Shape Free Object Inpainting with Diffusion Model"

Abstract

This paper addresses an important problem of object addition for images with only text guidance. It is challenging because the new object must be integrated seamlessly into the image with consistent visual context, such as lighting, texture, and spatial location. While existing text-guided image inpainting methods can add objects, they either fail to preserve the background consistency or involve cumbersome human intervention in specifying bounding boxes or user-scribbled masks. To tackle this challenge, we introduce Diffree, a Text-to-Image (T2I) model that facilitates text-guided object addition with only text control. To this end, we curate OABench, an exquisite synthetic dataset by removing objects with advanced image inpainting techniques. OABench comprises 74K real-world tuples of an original image, an inpainted image with the object removed, an object mask, and object descriptions. Trained on OABench using the Stable Diffusion model with an additional mask prediction module, Diffree uniquely predicts the position of the new object and achieves object addition with guidance from only text. Extensive experiments demonstrate that Diffree excels in adding new objects with a high success rate while maintaining background consistency, spatial appropriateness, and object relevance and quality.

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We are open to any suggestions and discussions and feel free to contact us through liruizhao@stu.xmu.edu.cn.

News

• [2024/07] Release inference code and <a href="https://huggingface.co/LiruiZhao/Diffree">checkpoint</a>
• [2024/07] Release <a href="https://huggingface.co/spaces/LiruiZhao/Diffree">🤗 Hugging Face Demo</a>
• [2024/08] Release ConfyUI demo. Thanks smthemex (ComfyUI_Diffree) for helping!
• [2024/08] Release training dataset OABench in Hugging Face
• [2024/08] Release training code
• [2024/08] Update <a href="https://huggingface.co/spaces/LiruiZhao/Diffree">🤗 Demo</a>, now support iterative generation through a text list

Contents

• Install
• Inference
• Data Download
• Training
• Citation

Install

1. Clone this repository and navigate to Diffree folder

git clone https://github.com/OpenGVLab/Diffree.git

cd Diffree

2. Install package

conda create -n diffree python=3.8.5

conda activate diffree

pip install -r requirements.txt

Inference

1. Download the Diffree model from Huggingface.

pip install huggingface_hub

huggingface-cli download LiruiZhao/Diffree --local-dir ./checkpoints

2. You can inference with the script:

python app.py

Specifically, --resolution defines the maximum size for both the resized input image and output image. For our <a href="https://huggingface.co/spaces/LiruiZhao/Diffree">Hugging Face Demo</a>, we set the --resolution to 512 to enhance the user experience with higher-resolution results. While during the training process of Diffree, --resolution is set to 256. Therefore, reducing --resolution might improve results (e.g., consider trying 320 as a potential value).

Data Download

You can download the OABench here, which are used for training the Diffree.

1. Download the OABench dataset from Huggingface.

huggingface-cli download --repo-type dataset LiruiZhao/OABench --local-dir ./dataset --local-dir-use-symlinks False

2. Find and extract all compressed files in the dataset directory

cd dataset

ls *.tar.gz | xargs -n1 tar xvf

The data structure should be like:

|-- dataset
    |-- original_images
        |-- 58134.jpg
        |-- 235791.jpg
        |-- ...
    |-- inpainted_images
        |-- 58134
          |-- 634757.jpg
          |-- 634761.jpg
          |-- ...
        |-- 235791
        |-- ...
    |-- mask_images
        |-- 58134
          |-- 634757.png
          |-- 634761.png
          |-- ...
        |-- 235791
        |-- ...
    |-- annotations.json

In the inpainted_images and mask_images directories, the top-level folders correspond to the original images, and the contents of each folder are the inpainted images and masks for those images.

Training

Diffree is trained by fine-tuning from an initial StableDiffusion checkpoint.

1. Download a Stable Diffusion checkpoint and move it to the checkpoints directory. For our trained models, we used the v1.5 checkpoint as the starting point. You can also use the following command:

curl -L https://huggingface.co/runwayml/stable-diffusion-v1-5/resolve/main/v1-5-pruned-emaonly.ckpt -o checkpoints/v1-5-pruned-emaonly.ckpt

2. Next, you can start training.

python main.py --name diffree --base config/train.yaml --train --gpus 0,1,2,3

All configurations are stored in the YAML file. If you need to use custom configuration settings, you can modify the --base to point to your custom config file.

Citation

If you found this work useful, please consider citing:

@article{zhao2024diffree,
  title={Diffree: Text-Guided Shape Free Object Inpainting with Diffusion Model},
  author={Zhao, Lirui and Yang, Tianshuo and Shao, Wenqi and Zhang, Yuxin and Qiao, Yu and Luo, Ping and Zhang, Kaipeng and Ji, Rongrong},
  journal={arXiv preprint arXiv:2407.16982},
  year={2024}
}