Multimedia Courseware Copyright Notification and Protection Based on DCT

Author

Huang, Ruohong ; Liu, Huailan ; Chen, Yongqiang

Author_Institution

Huazhong Univ. of Sci. and Technol., Wuhan

fYear

2007

fDate

23-25 Nov. 2007

Firstpage

449

Lastpage

452

Abstract

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.

Keywords

courseware; discrete cosine transforms; image colour analysis; multimedia computing; watermarking; digital watermarking; discrete cosine transforms; multimedia courseware copyright notification; multimedia courseware protection; screen color image; Color; Computer science; Courseware; Discrete cosine transforms; Image coding; Image converters; Pixel; Protection; Streaming media; Watermarking; Copyright Notification; Copyright Protection; DCT; Digital Watermark; Multimedia Courseware;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technologies and Applications in Education, 2007. ISITAE '07. First IEEE International Symposium on

Conference_Location

Kunming

Print_ISBN

978-1-4244-1386-7

Electronic_ISBN

978-1-4244-1386-7

Type

conf

DOI

10.1109/ISITAE.2007.4409322

Filename

4409322