Reversible PRNU anonymity for device privacy protection based on data hiding

In this paper, we propose a method of protecting a device from being identified with the images captured by it. This method can suppress the device-related fingerprint, i.e., PRNU, in an image via modifying it in the domain of integer wavelet transform. In addition, we embed the suppressed PRNU into the image using reversible data hiding to achieve a perfect recovery of the original image. This is beneficial to solve the problems of device privacy leakage and terminal server identity authentication. Extensive experiments on MICHE-I and VISION datasets show that the proposed method makes up for the shortcomings of existing techniques and has strong scalability.