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Lossless image compression and encryption using SCAN
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DOI：10.1016/S0031-3203(00)00062-5.png)
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Abstract
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This paper presents a new methodology which performs both lossless compression and encryption of binary and gray-scale images. The compression and encryption schemes are based on SCAN patterns generated by the SCAN methodology. The SCAN is a formal language-based two-dimensional spatial-accessing methodology which can efficiently specify and generate a wide range of scanning paths ol space filling curves. This paper presents a brief overview of SCAN, compression and decompression algorithms, encryption and decryption algorithms, and test results of the methodology. (C) 2001 Pattern Recognition Society. Published by Elsevier Science Ltd. All rights reserved.
Keywords:
lossless image compression
image encryption
scanning techniques
SCAN methodology
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