图像置乱效果评价算法综述

图像置乱技术通过对图像矩阵的重排操作,破坏图像矩阵的相关性,从而实现信息加密。图像置乱效果评价方法是对图像置乱程度的客观评价,目前涌现的图像置乱方法都从各个方面验证其自身的优越性,但仍没有一种通用的评判方法。该文根据最优置乱效果的定义,讨论了一些现有的图像置乱效果评判方法,在深入研究这些方法的原理后,对各置乱性能评判方法的客观性进行了深入分析和讨论。

A Survey of Assessment of Image Scrambling Degree

In order to achieve image encryption,image scrambling technology damage to the image correlation matrix,through the re-arrangement of the image matrix operation.Image scrambling evaluation method is an objective assessment to the degree of image scram-bling,and the current image scrambling evaluation method prove their own superiority from all aspects,but still not a common evaluation method.According to the definition of optimal image scrambling degree,this paper gives the key technology of image scrambling assess-ment,and analyses the impersonality of the these algorithms.