摘要
提出对于正方形数字图像,对离散化的Arnold变换进行反变换推算,反变换是通过对方程组求解得到的。并且对Arnold变换进行了改进,改进后的Arnold变换置乱原图像后所需的恢复时间比原Arnold变换和利用反变换的图像恢复时间快,周期更短,呈非线性关系。
In this paper, for a square image, the Anti-transform is carried on to the discretization Arnold transformation to calculate that this inverse transformation is set obtains through solving the equation. And the Arnold transform is improved. Arnold transform improved after scrambling of the original image recovery time required is faster than original Arnold transform and the inverse transform, the period is shorter than before and nonlinear.
出处
《电视技术》
北大核心
2011年第17期33-35,共3页
Video Engineering
基金
国家科技重大专项(2009ZX03001-004)
国家自然科学基金项目(61071116)
重庆市科委自然科学基金项目(CSTC
2010BB2407)
信号与信息处理重庆市市级重点实验室建设项目(CSTC
2009CA2003)
