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http://hdl.handle.net/10397/107272
Title: | Joint image compression and encryption based on alternating transforms with quality control | Authors: | Li, P Lo, KT |
Issue Date: | 2015 | Source: | In Proceedings of 2015 Visual Communications and Image Processing (VCIP), 13-16 December 2015, Singapore | Abstract: | In this paper, we propose a novel joint image compression and encryption technique where an annoying image can still be recovered even without the encryption key. Our work is based on JPEG standard. By embedding encryption algorithm at the transformation stage, we realize image encryption and compression together with controllable image quality. Instead of using the 8×8 discrete cosine transform (DCT) alone for transformation, we develop new orthogonal transforms by introducing sign-flips into the butterflies of DCT's flow-graph structure, and then employ them alternatively in JPEG's transformation stage according to a secret key. By carefully selecting the butterflies for sign-flipping, we can control the visual quality of the encrypted images. Finally, a detailed security analysis of our proposed encryption algorithm is presented to show its resistance to various attacks, such as cryptographic attack, replacement attack and statistical model-based attack. | Keywords: | Image encryption JPEG standard Orthogonal transforms Quality control Security analysis |
Publisher: | Institute of Electrical and Electronics Engineers | ISBN: | 978-1-4673-7314-2 (Electronic) 978-1-4673-7313-5 (USB) |
DOI: | 10.1109/VCIP.2015.7457867 | Description: | 2015 Visual Communications and Image Processing (VCIP), 13-16 December 2015, Singapore | Rights: | ©2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication P. Li and K. -T. Lo, "Joint image compression and encryption based on alternating transforms with quality control," 2015 Visual Communications and Image Processing (VCIP), Singapore, 2015 is available at https://doi.org/10.1109/VCIP.2015.7457867. |
Appears in Collections: | Conference Paper |
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