Multimedia Courseware Copyright Notification and Protection Based on DCT

摘要：

According to the characteristic of courseware screen stream, this paper proposes a novel digital watermark solution for the color image of screen stream based on DCT. It embeds visible and invisible watermarks into different area of screen color image to achieve screen color image with dual digital watermark embedded. The effectiveness and good results of this method in multimedia courseware copyright notification and protection have been testified by a test system.

关键词： Digital Watermark Copyright Notification Copyright Protection DCT, Multimedia Courseware

作者: Ruohong Huang Huailan Liu Yongqiang Chen

作者单位: School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, P. School of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan, P. R.

会议类型: 国际会议

会议名称: 第一届国际教育信息技术及应用研讨会(2007 1st International Symposium on Information Technologies and Applications in Education(ISITAE 2007))

会议地点: 昆明

会议语种:英文

在线出版日期: 2007-11-23（万方平台首次上网日期，不代表论文的发表时间）