Security of image communication services such as CATV, facsimile, and coming medical image services,etc. will be more important matter, and secure communication should be realized in a simple manner. In this paper, the scrambling algorithm using SFC (Space Filling Curves) and coding algorithm using wavelet transform for still images, which are part of basic technologies to realize secure image communication, are proposed. Also further study items are discussed, analizing simulation results of proposed algorithm.
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