摘要
介绍了一种基于空间域的信息隐藏方案。在该方案中,通过对水印像点的位置进行随机置乱,达到加密的目的。考虑到了人类视觉系统特性,并根据图像块的特点自适应地改变嵌入信息的强度,使水印具有更好的不可见性。同时,将水印点嵌入到图像块中的位置进行随机置乱,提高了水印的安全性以及稳健性。该算法非常简便易行,而且实验证明,该算法是有效的。
In this paper,a convenient image steganography scheme based on the spatial domain is proposed. By disordering randomly the position of pixels of the wateamarking image,encryption is achieved. According to the features of human visual system and the property of the image block, the intensity of the watermarking is adaptive changed, so the watermarking is more invisible. And by disordering the position of the image block that the watermarking pixel embed into, the watermarking is more secure and robust. This algorithm is simple and convenient. The result confirms the efficiency.
出处
《现代电子技术》
2006年第15期60-61,64,共3页
Modern Electronics Technique
关键词
数字水印
空间域
图像处理
信息隐藏
digital watermarking
spatial domain
image processing
information steganography
