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We present a new design of low-power and high-speed Discrete Cosine Transform (DCT) for image compression to be implemented on Field Programmable Gate Arrays (FPGAs). The proposed compression method converts the image to be compressed in many lines of 8 pixels and then applies our optimized 1D-DCT algorithm for compression. The DCT optimization is based on the hardware simplification of the multipliers...
In this manuscript, we describe a fully pipelined single chip architecture for implementing a new simultaneous image compression and encryption method suitable for real-time applications. The proposed method exploits the DCT properties to achieve the compression and the encryption simultaneously. First, to realize the compression, 8-point DCT applied to several images are done. Second, contrary to...
For telecommunication systems, various compression and encryption techniques are proposed to satisfy a fast and secure transmission. However these two techniques have been studied separately. In this paper we propose a method combining encryption and compression based on independent component analysis (ICA) and Discrete Cosine Transform (DCT). For encryption, target images are covered with an insignificant...
For any transmission of fast and protected information, it is necessary to carry out two operations distinctly. The first one, is an operation of compression which consists in reducing the size of information to be transmitted, by removing redundant information of them. The second one is an operation of encryption, which aims to modify this compressed information to make them unreadable to whoever...
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