An RGB Image Encryption Supported by Wavelet-based Lossless Compression
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2012, Vol 3, Issue 9
Abstract
In this paper we have proposed a method for an RGB image encryption supported by lifting scheme based lossless compression. Firstly we have compressd the input color image using a 2-D integer wavelet transform. Then we have applied lossless predictive coding to achieve additional compression. The compressed image is encrypted by using Secure Advanced Hill Cipher (SAHC) involving a pair of involutory matrices, a function called Mix() and an operation called XOR. Decryption followed by reconstruction shows that there is no difference between the output image and the input image. The proposed method can be used for efficient and secure transmission of image data.
Authors and Affiliations
Ch. Samson, V. Sastry
Keywords
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