FreeInv: Free Lunch for Improving DDIM Inversion

🛠️ Installation

pip install -r requirements.txt

🚀 Run

1. DDIM Inversion

python ddim_inversion.py

2. FreeInv

python ddim_inversion.py --freeinv

Additional plug-and-play comparison examples, built upon the PnPInversion codebase, are available in the FreeInv_image/ folder.

⭐ Cite

If you find this project useful in your research, we appreciate your star and citation of our work:

@article{bao2025freeinv,
  title={FreeInv: Free Lunch for Improving DDIM Inversion},
  author={Bao, Yuxiang and Liu, Huijie and Gao, Xun and Fu, Huan and Kang, Guoliang},
  journal={arXiv preprint arXiv:2503.23035},
  year={2025}
}

🎖️ Acknowledgement

This work is built upon the plug-and-play, TokenFlow, and PnPInversion.

🦄 Contact

Please contact @yuxiangbao for questions, comments and reporting bugs.