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Visual Secret Sharing (VSS) encrypts secret images into n shares and decryption is done through the human vision. But, traditional visual cryptography scheme is restricted to the number of secret images or the performance of recovered image is not good. The proposed scheme shares multiple images using gray level mixing with real size image recovery and has improved contrast of recovered images with use of inspection function. The authors propose a scheme that can share m binary secret images into n rectangular gray level share images. The low computation bit plane encoding scheme uses concept of Extended Visual Cryptography Scheme (EVCS) to have meaningful shares that can easily managed and reduce attention of hackers over communication channel.
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