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Digital watermarking is a technique that embeds additional data into digital contents so that the distortion by embedding them is imperceptible, where the additional data are called watermark. One of the applications of digital watermarking is tamper detection and recovery. The digital watermarking methods for tamper detection and recovery can detect the tampered region in a tampered image and recover...
This paper describes the result of our investigation on the utilization pixels arrangement and random permutation to encrypt medical image for transmission security. The objective of this scheme is to obtain a high speed computation process and high security. Among other algorithms such as transform method and traditional method, pixels arrangement and permutation provide simple and quick processes;...
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