An Encryption-then-Compression system for JPEG 2000 standard
An Encryption-then-Compression system for JPEG 2000 standard
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DOI：
10.1109/icassp.2015.7178165
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发表时间：
2015-04
期刊：
影响因子：
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通讯作者：
Osamu Watanabe;Akira Uchida;T. Fukuhara;H. Kiya
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文献类型：
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作者：
Osamu Watanabe;Akira Uchida;T. Fukuhara;H. Kiya
本文提出了一种新的JPEG 2000标准的加密压缩（ETC）系统。ETC系统被称为通过使用感知加密和图像压缩来使图像通信安全且高效的系统。该系统采用符号置乱和块置乱的离散小波变换（DWT）系数的感知加密。与传统的ETC系统不同，所提出的系统与JPEG 2000标准兼容，因为感知加密系数可以由JPEG 2000有效地压缩。实验结果表明，该系统在保持与JPEG 2000标准兼容的同时，具有可接受的压缩性能和足够的密钥空间用于安全的图像通信。
A new Encryption-then-Compression (ETC) system for the JPEG 2000 standard is proposed in this paper. An ETC system is known as a system that makes image communication secure and efficient by using perceptual encryption and image compression. The proposed system uses the sign-scrambling and block-shuffling of discrete wavelet transform (DWT) coefficients as perceptual encryption. Unlike conventional ETC systems, the proposed system is compatible with the JPEG 2000 standard because the perceptually encrypted coefficients can be efficiently compressed by the JPEG 2000. The experimental results demonstrated that the proposed system achieved both acceptable compression performance and enough key-space for secure image communication while remaining compatible with the JPEG 2000 standard.