压缩感知技术在数字图像加密中的应用研究

Application of Compressed Sensing Technology in Digital Image Encryption

基于压缩感知技术设计了一种新的数字图像加密方法.在准备好初始密钥的情况下,应用移位触发器产生量化数组和干扰元素,再利用设计的若干密钥即可高效地对数字图像进行加密.实验表明,方案易于执行、加密安全性高且能抵御数据丢失,非法人员无法在不知密钥的情况下解密还原出原始图像;此方法压缩采样率低,且能较好地实现图像的隐蔽传输.

The study designs a new encryption method of digital images based on the compressed sensing technology. In the case of the initial key is ready,use the shift trigger to produce quantization array and interference elements,and then use the designed secret key to encrypt the digital image efficiently. The experiment shows that the method is easy to perform,has high security of encryption and could withstand the loss of data. Illegal personnel without the key could not decrypt and recover the original image. This method has low compressed sampling rate and could realize the covert transmission of image in a better way.