o78kay / tf-icon

ICCV 2023. Official implementation of TF-ICON: Diffusion-Based Training-Free Cross-Domain Image Composition.

TF-ICON: Diffusion-Based Training-Free Cross-Domain Image Composition (ICCV 2023)

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Official implementation of TF-ICON: Diffusion-Based Training-Free Cross-Domain Image Composition.

TF-ICON: Diffusion-Based Training-Free Cross-Domain Image Composition

Shilin Lu, Yanzhu Liu, and Adams Wai-Kin Kong
ICCV 2023

Abstract:
Text-driven diffusion models have exhibited impressive generative capabilities, enabling various image editing tasks. In this paper, we propose TF-ICON, a novel Training-Free Image COmpositioN framework that harnesses the power of text-driven diffusion models for cross-domain image-guided composition. This task aims to seamlessly integrate user-provided objects into a specific visual context. Current diffusion-based methods often involve costly instance-based optimization or finetuning of pretrained models on customized datasets, which can potentially undermine their rich prior. In contrast, TF-ICON can leverage off-the-shelf diffusion models to perform cross-domain image-guided composition without requiring additional training, finetuning, or optimization. Moreover, we introduce the exceptional prompt, which contains no information, to facilitate text-driven diffusion models in accurately inverting real images into latent representations, forming the basis for compositing. Our experiments show that equipping Stable Diffusion with the exceptional prompt outperforms state-of-the-art inversion methods on various datasets (CelebA-HQ, COCO, and ImageNet), and that TF-ICON surpasses prior baselines in versatile visual domains.

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Contents

• Setup
  • Creating a Conda Environment
  • Downloading Stable-Diffusion Weights
• Running TF-ICON
  • Data Preparation
  • Image Composition
• TF-ICON Test Benchmark
• Additional Results
  • Sketchy Painting
  • Oil Painting
  • Photorealism
  • Cartoon
• Acknowledgments
• Citation

Setup

Our codebase is built on Stable-Diffusion and has shared dependencies and model architecture. VRAM of 24 GB+ are required.

Creating a Conda Environment

git clone https://github.com/Shilin-LU/TF-ICON.git
cd TF-ICON
conda env create -f tf_icon_env.yaml
conda activate tf-icon

Downloading Stable-Diffusion Weights

Download the StableDiffusion weights from the Stability AI at Hugging Face (download the sd-v2-1_512-ema-pruned.ckpt file), and put it under ./ckpt folder.

Running TF-ICON

Data Preparation

Several input samples are available under ./inputs directory. Each sample involves one background (bg), one foreground (fg), one segmentation mask for the foreground (fg_mask), and one user mask that denotes the desired composition location (mask_bg_fg). The input data structure is like this:

inputs
├── cross_domain
│  ├── prompt1
│  │  ├── bgxx.png
│  │  ├── fgxx.png
│  │  ├── fgxx_mask.png
│  │  ├── mask_bg_fg.png
│  ├── prompt2
│  ├── ...
├── same_domain
│  ├── prompt1
│  │  ├── bgxx.png
│  │  ├── fgxx.png
│  │  ├── fgxx_mask.png
│  │  ├── mask_bg_fg.png
│  ├── prompt2
│  ├── ...

More samples are available in TF-ICON Test Benchmark or you can customize them. Note that the resolution of the input foreground should not be too small.

• Cross domain: the background and foreground images originate from different visual domains.
• Same domain: both the background and foreground images belong to the same photorealism domain.

Image Composition

To execute the TF-ICON, run the following commands:

python scripts/main_tf_icon.py  --ckpt <path/to/model.ckpt/>      \
                                --root ./inputs/cross_domain      \
                                --cross_domain True               \
                                --dpm_steps 20                    \
                                --dpm_order 2                     \
                                --scale 5                         \
                                --tau_a 0.4                       \
                                --tau_b 0.8                       \
                                --outdir ./outputs                \
                                --gpu cuda:0                      \
                                --seed 3407                         

• ckpt: The path to the checkpoint of Stable Diffusion.
• root: The path to your input data.
• cross_domain: Setting if the foreground and background are from different visual domains.
• dpm_steps: The diffusion sampling steps.
• dpm_solver: The order of the probability flow ODE solver.
• scale: The classifier-free guidance (CFG) scale.
• tau_a: The threshold for injecting composite self-attention maps.
• tau_b: The threshold for preserving background.

TF-ICON Test Benchmark

The complete TF-ICON test benchmark is available in this OneDrive folder. If you find the benchmark useful for your research, please consider citing.

Additional Results

Sketchy Painting

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Oil Painting

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Photorealism

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Cartoon

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Acknowledgments

Our work is standing on the shoulders of giants. We thank the following contributors that our code is based on: Stable-Diffusion and Prompt-to-Prompt.

Citation

If you find the repo useful, please consider citing:

@InProceedings{lu2023tficon,
    author    = {Lu, Shilin and Liu, Yanzhu and Kong, Adams Wai-Kin},
    title     = {TF-ICON: Diffusion-Based Training-Free Cross-Domain Image Composition},
    booktitle = {Proceedings of the IEEE/CVF International Conference on Computer Vision},
    year      = {2023},
}