基于差分扩展的高效数字图像嵌入算法研究

Study on efficient embedding algorithm of digital image based on difference expansion

针对某些特殊情况需要将数据进行安全可靠传输的问题,本文提出一种基于差分扩展的将数据嵌入数字图像的算法。即将数字图像作为待传输数据的载体,按照差分扩展原理将待传数据嵌入到数字图像后进行发送,再由接收方按照与之相逆的方法进行数据恢复。经过实验表明,该算法与其它算法比较。

For some special data transmission situations, data must be transmitted safely and reliably.In this paper, a data embedding algorithm is proposed based on difference expansion.The digital image is a carrier of data transmission, according to the principle of difference expansion, data is embedded to digital image and sent to the receiver that is used to restore data using reversible data embedding method.Comparing with other algorithms, the experimental results show that this algorithm has a higher data embedding ratio and a lower distortion ratio.