【摘要】 给出了应用混沌和小波理论实现图像加密的一种方案。该方案对于互联网上大量的图片,应用小波的多尺度特性对图像进行分解,依据人类视觉特性,留取其近似部分(即低频部分)去掉其细节(即高频部分)。为减少信道传输量,又对分解后留下的低频部分进行小波阈值压缩,最后应用混沌方程生成的混沌序列,对经过分解压缩的图像进行加密。该方案保密性强,信道传输量低。更多还原

【Abstract】 A project that realized encrypting image based on the theory chaos and mini-wave is presented,which apply the image on Internet.The project decomposes the image rely on mini-wave’s multi-measure characters and retains its lower frequency and form chaos serials.At last,the decomposed and compressed image is encrypted.The plan high on secrecy and lower on transmission.更多还原