• CASIA 2.0 groundtruth dataset is avaiable at: https://github.com/namtpham/casia2groundtruth

• Please notice that the authors made mistakes in naming the files. If you already downloaded the dataset, I recommend you to rename the tampered images using the commands in the excel file. Otherwise, you can use the modified version of dataset.

• Since the owners' server is no longer avaiable, I upload the dataset to my drive, including original dataset and the modified version (renaming dozens of images in tampering folder). Please visit one of the following links to download (~90 MB):

• Google Drive: https://bit.ly/37TuHRx

• One Drive: https://bit.ly/3nXyYJw

Due to the lack of manual file, I write up here the naming convention:

Au_ani_0001.jpg

Au: Authentic

ani: animal category

Other categories: arc (architecture), art, cha (characters), nat (nature), pla (plants), sec, txt (texture)

a. Spliced image

    Sp_D_CND_A_pla0005_pla0023_0281.jpg

• Sp: Splicing
• D: Different (means the tampered region was copied from the different image)
• Next 4 letters stand for the techniques they used to create the images. Unfortunately, I don't remember exactly.
• pla0005: the source image
• pla0023: the target image
• 0281: tampered image ID

b. Copy-move images

    Sp_S_CND_A_pla0016_pla0016_0196.jpg

• Sp: Tampering
• S: Same (means the tampered region was copied from the same image)
• And the rest is similar to case a.

If you use the groundtruth dataset for a scientific publication, please cite the following papers

• CASIA dataset

    @inproceedings{Dong2013,
    doi = {10.1109/chinasip.2013.6625374},
    url = {https://doi.org/10.1109/chinasip.2013.6625374},
    year = {2013},
    month = jul,
    publisher = {{IEEE}},
    author = {Jing Dong and Wei Wang and Tieniu Tan},
    title = {{CASIA} Image Tampering Detection Evaluation Database},
    booktitle = {2013 {IEEE} China Summit and International Conference on Signal and Information Processing}
    }
  

• CASIA groundtruth dataset

   @article{pham2019hybrid,
   title={Hybrid Image-Retrieval Method for Image-Splicing Validation},
   author={Pham, Nam Thanh and Lee, Jong-Weon and Kwon, Goo-Rak and Park, Chun-Su},
   journal={Symmetry},
   volume={11},
   number={1},
   pages={83},
   year={2019},
   publisher={Multidisciplinary Digital Publishing Institute}
   }