An encryption-then-compression system for JPEG XR standard
Citations Over TimeTop 10% of 2016 papers
Abstract
In many multimedia applications, image encryption has to be conducted prior to image compression. This paper proposes an Encryption-then-Compression system using a JPEG XR friendly perceptual encryption method, which enables to be conducted prior to JPEG XR compression. The proposed encryption method can provide approximately the same compression performance as that of JPEG XR compression without any encryption. It is also shown that the proposed system consists of four block-based encryption steps, and provides a reasonably high level of security. Most of conventional perceptual encryption methods have not been designed for international compression standards, but for the first time this paper focuses on applying the JPEG XR standard, which supports lossy and lossless coding for various kinds of images including high dynamic range images.
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