README.md

Robust DM-generated images detection with CLIP

Santosh, Li Lin, Xin Wang, Shu Hu

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This repository is the official implementation of our paper Robust Diffusion Model-Generated Image Detection with CLIP

1. Data Preparation

• Download the dataset from the HuggingFace
• After downloading the parquet files, tranform them into h5 files.

python get_data.py

• Use CLIP ViT L/14 to extract image and text features and save them into h5 folder (e.g., clip_train/0000.h5 and clip_val/0000.h5) by executing h5_process.py. Note: h5_process.py file uses clip_feature.py to extract images and text features.

python h5_process.py

2. Train the model

• load, 'train' folder for train_dataset in train.py; load 'val' folder for val_dataset in train.py.

    train_dataset = DFADDataset('train')
    val_dataset = DFADDataset('val')

python train.py

• Use CVaR & AUC Loss

 model_trainer(loss_type='auc', alpha=0.1,  batch_size=2048, num_epochs=32)

Tune gamma on CVaR + AUC loss to find the best tradeoff hyperparameter

Citation

Please kindly consider citing our papers in your publications.

@inproceedings{Santosh2024robust,
      title={Robust Diffusion Model-Generated Image Detection with CLIP}, 
      author={Santosh and Li Lin and Xin Wang and Shu Hu},
      booktitle={1st Workshop on New Trends in AI-Generated Media and Security},
      year={2024},
}