基于面包师算法的数字图像置乱处理研究

A Study of the Processing of Scrambling Digital Images Based on Baker Algorithms

数字信息革命给我们的社会和生活带来了巨大的变化,同时,也带来了新的挑战和革新的机会。提出了一种基于面包师变换的数字图像置乱新算法。给出了K进制面包师变换的定义,并讨论了其在数字图像置乱中的应用。对基于面包师变换的数字图像置乱算法的鲁棒性进行了分析(如密钥空间、相邻像素的相关性、抗图像处理等)。实验结果表明,这种置乱方法能够在一定程度上抵抗一些通常的图像攻击,如裁剪、压缩和高斯噪音等。

The digital information revolution has brought profound changes in our society and our lives, which also brings about new challenges and new opportunities for innovation. We put forward here a digital image scrambling algorithm based on baker transformation, in which the definition of k - th system baker transformation is given and its application in digital image scrambling has been discussed. An analysis is made of the robustness of the image scrambling algorithm based on baker transformation （ for example, key space, the correlation of two adjacent pixels and tolerance of image processing）. Experiments show that our algorithm can resist some common image attack, such as loss of data, compression and Gaussian noises, etc.