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参考文献

2-D Compressive Sensing-Based Visually Secure Multilevel Image Encryption Scheme

加密整体流程如下：

我们关注左上角这一部分：

如何在两个图像之间构建关系，当然是借助第3个矩阵。

A. Establish Relationships Between Different Images

简单说明如下：


Remark 1: To make the constructed relation matrix reversible or the rank of the relation matrix large enough, the images used in the proposed method are all N × N size and have no restriction on the