作　　者： ;

机构地区： 重庆教育学院计算机与现代教育技术系

出　　处： 《计算机科学》 2002年第8期117-118,133,共3页

摘　　要： 1引言 多媒体数据的数字化为多媒体信息的存取提供了极大的方便,同时也极大地提高了信息表达的效率和准确性.随着因特网的日益普及,其上的数字媒体(数字声音、文本、图像和视频)应用正在呈爆炸式的增长,越来越多的知识产品以电子版的方式在网上传播. As an effective method of ownership assertion for digital media, digital watermarking has been targeted especially in recent years. From characteristics, general framework and applications of digital watermarking, we present a new way to insert a fine digital watermarking in an image in this paper. The image is divided into two categories, one is suited for inserting a digital watermarking, the other is not. So, we can select the appropriate pixels in an image to insert the digital watermarking. In the end, we also present results from two image experiments to show that our approach is applicable in practice.

关 键 词： 数字水印 算法 密码学 多媒体信息 版权保护

领　　域： [电子电信] [电子电信] [政治法律] [政治法律]