摘要
数字水印技术是保护数字媒体安全的一种有效手段,但当前对数字水印技术的研究还有待进一步加强。该文给出了图像数字水印的几种一般算法和部分实例,最后对数字水印技术的发展趋势进行了总结。
Digital watermark technique is an effective method to protect safety of digital media,but it is needed to enhance the research o watermark technology now. This paper offers some common algorithms and examples of image watermark,and summarizes the develop trend o watermark technology finally.
出处
《计算机安全》
2008年第5期45-47,共3页
Network & Computer Security
基金
潍科字200601072号
关键词
图像数字水印
时空域
DCT
DWT
水印算法
image digital watermark
space time field
DCT
DWT
watermark algorithm
