Double Random Phase Encoding Method Using Interleaving Algorithm for Security Consideration

This paper proposed a new watermarking method based on double random phase encoding (DRPE). In the conventional DRPE method, two random phase masks (keys) are needed. Obviating the need of sending large keys through a secure channel, we generated the Fourier mask by interleaving process. Having the interleaver key and source image, the watermark can be reconstructed. Experimental results show that the proposed method is robust to noise and attacks.