【摘要】 采用混沌序列的特性和分数阶傅里叶变换,实现图像双重加密。由密钥生成实数值混沌序列,对数字图像进行空域置乱,然后进行分数傅里叶变换,实现图像的双重加密,只有同时清楚混沌序列和分数阶傅里叶变换阶数才可能对加密图像进行有效解密。计算机模拟表明该方法是有效的,具有很好的加密效果。更多还原

【Abstract】 Presents an image encryption technology based on chaotic sequences and fractional Fourier transform.At first,the real number value chaotic sequences are generated by using the key value,then encrypt the image combining the method of image scrambling in space.Combing it and fractional Fourier transform,multichannel image encryption is implemented.The experimental results show that the technology is valid and has good security.更多还原