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Multiple binary images hiding with bit-plane composition and jigsaw transform

A new scheme for multiple binary image hiding is proposed. The digital methods of the bit-plane composition and the jigsaw transform are both introduced into the double phase modulated system. By the combination of the digital and the optical methods, the direct superposition of multiple images in most of present techniques is easily avoided. As a result, the proposed scheme is available to hide sixteen binary images without any noises. It implies that a quite satisfactory trade-off between the fidelity and the multiplexing capacity is achieved. According to the results of computer simulations, we also analyze the performances of the proposed scheme including the security, the complexity and the flexibility.