A watermark for digital images

Author

Wolfgang, Raymond B. ; Delp, Edward J.

Author_Institution

Comput. Vision & Image Process. Lab., Purdue Univ., West Lafayette, IN, USA

Volume

3

fYear

1996

fDate

16-19 Sep 1996

Firstpage

219

Abstract

The growth of networked multimedia systems has magnified the need for image copyright protection. One approach used to address this problem is to add an invisible structure to an image that can be used to seal or mark it. These structures are known as digital watermarks. We describe two techniques for the invisible marking of images. We analyze the robustness of the watermarks with respect to linear and nonlinear filtering, and JPEG compression. The results show that our watermarks detect all but the most minute changes to the image

Keywords

copyright; data compression; filtering theory; image coding; image colour analysis; multimedia communication; security of data; JPEG compression; algorithms; colour images; digital images; digital watermarks; image changes detection; image copyright protection; invisible structure; linear filtering; networked multimedia systems; nonlinear filtering; random errors detection; Copyright protection; Digital images; Filtering; Image coding; Multimedia systems; Nonlinear filters; Robustness; Seals; Transform coding; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1996. Proceedings., International Conference on

Conference_Location

Lausanne

Print_ISBN

0-7803-3259-8

Type

conf

DOI

10.1109/ICIP.1996.560423

Filename

560423