计算机技术与发展2011，Vol.21Issue(12)：145-147,151,4.
基于小波变换的压缩感知在图像加密中的应用
Compressed Sensing Based on Single Layer Wavelet Transform for Image Encryption
摘要
Abstract
According to compressed sensing algorithm based on the single layer wavelet transform, a new chaotic cryptosystem method based on skew tent map was proposed. For the encryption ,by using the improved compressed sensing algorithm based on the single layer wavelet transform could initialize the image, then the image can be encrypted. For the decryption, decrypt the image first, then by using the orthogonal matching pursuit (OMP) algorithm, high-pass wavelet coefficients could be recovered by the measurements. Then the image could be reconstructed by the inverse wavelet transform. Compared with the original cryptosystem, the proposed cryptosystem inherited the advantages of the original one and it greatly enhances the security of image encryption with small image distortion by using the same time.关键词
压缩感知/图像加密/单层小波变换/斜帐篷映射/混沌序列Key words
compressed sensing/ image encryption/ single layer wavelet transform/ skew tent map/ chaotic sequences分类
信息技术与安全科学引用本文复制引用
张爱华,薄禄裕,盛飞,杨培..基于小波变换的压缩感知在图像加密中的应用[J].计算机技术与发展,2011,21(12):145-147,151,4.基金项目
国家自然科学基金(61070234) （61070234）
南京邮电大学校科研基金(NY210018) （NY210018）
