Journal of Applied Sciences ›› 2023, Vol. 41 ›› Issue (2): 228-239.doi: 10.3969/j.issn.0255-8297.2023.02.004

• Digital Media Forensics and Security • Previous Articles     Next Articles

Image Privacy Protection Based on Cycle-Consistent Generative Adversarial Networks

XIE Yiyi1, ZHANG Yushu1, ZHAO Ruoyu1, WEN Wenying2, ZHOU Yuqian1   

  1. 1. College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, Jiangsu, China;
    2. School of Information Management, Jiangxi University of Finance and Economics, Nanchang 330013, Jiangxi, China
  • Received:2022-10-29 Online:2023-03-31 Published:2023-03-29

Abstract: Social media and cloud computing have facilitated the distribution and storage of images. Meanwhile, concerns about image privacy have been raised. It is crucial to protect image privacy from privacy violation and illegal use. Motivated by this, an image privacy protection method based on cycle-consistent generative adversarial networks (CycleGAN) is proposed in this paper. Considering the usability in image privacy protection, the method first combines image segmentation with CycleGAN to select different segmentation coefficients to generate images with different degrees of privacy protection. Then reversible information hiding is used to embed information in the generated privacy preserving image, so as to prevent illegal users from reversing the image. Thus, a balance is achieved between image privacy protection and usability. The proposed method is trained and tested using PIPA dataset, using peak signal to noise ratio and structural similarity index are used as performance metrics to evaluate the privacy-preserving images. Experimental results show that the proposed method outperforms other schemes in both image privacy preservation and usability.

Key words: image privacy protection, image segmentation, cycle-consistent generative adversarial networks (CycleGAN), reversible data hiding, image reconstruction

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