本文提出了一种置乱效果好、还原方法简单的图像置乱方法,对此算法进行分析,通过增加外部质点质量变化密钥的方式,对此算法做出改进；通过Matlab仿真分析,验证改进后的算法在保持原有算法的置乱效果的条件下,降低了原算法被破译的危险性.%An image scrambling method based on law of gravity is analyzed, it has good scrambling effect and simple reduction. By increasing external quality change, some improvements on this algorithm are made. Through Matlab simulation analysis, the improved algorithm is verified, it holds the scrambling effect of original algorithm and reduce the risk of being cracked.
展开▼
