Analysis of watermarking systems in the frequency domain and its application to design of robust watermarking systems

Author

Miyazaki, Akio ; Okamoto, Akihiro

Author_Institution

Graduate Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka, Japan

Volume

3

fYear

2001

fDate

2001

Firstpage

1969

Abstract

This paper aims to design robust watermarking systems in the frequency domain. We first present the general model of watermark embedding and extracting processes and carry out their analysis. Then we examine the robustness of the watermarking system against common image processing and clarify the reason why detection errors occur in the watermark extracting process. Based on the result, we improve the watermark extracting process and design the robust watermarking systems. The improvement is accomplished using deconvolution filter and neural network techniques. Numerical experiments using the DCT-based watermarking system show good performance as we expected

Keywords

copy protection; deconvolution; discrete cosine transforms; filtering theory; frequency-domain analysis; image processing; DCT-based watermarking system; deconvolution filter techniques; detection errors; digital watermarking; frequency domain analysis; image processing; neural network techniques; numerical experiments; robust watermarking systems; robustness; watermark embedding process; watermark extracting process; Discrete cosine transforms; Discrete wavelet transforms; Filters; Frequency domain analysis; Image processing; Neural networks; Process design; Robustness; Signal processing; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on

Conference_Location

Salt Lake City, UT

ISSN

1520-6149

Print_ISBN

0-7803-7041-4

Type

conf

DOI

10.1109/ICASSP.2001.941333

Filename

941333