Robust digital watermarking based on fractal dimension in color images

Author

Rongrong, Ni ; Qiuqi, Ruan

Author_Institution

Inst. of Inf. Sci., Northern Jiaotong Univ., Beijing, China

Volume

1

fYear

2002

fDate

26-30 Aug. 2002

Firstpage

808

Abstract

The paper presents a robust digital watermarking algorithm based on the fractal dimension in color images. First, R, G and B planes of the host color image are divided into blocks with fixed size of 8×8. Second, the concept of fractal dimension is used to select edge block positions in the R plane as embedding positions in G and B planes. Third, the characteristics of the human visual system (HVS) and the relationship among DCT-coefficients are applied in the embedding procedure. During the extracting procedure, the original color image is not needed. Experimental results show that this algorithm can get good perceptual invisibility. It is also robust against geometry attacks and low-pass filter and high-pass filter processing.

Keywords

data encapsulation; discrete cosine transforms; fractals; image colour analysis; transform coding; visual perception; watermarking; DCT-coefficients; color images; edge block positions; embedding positions; fractal dimension; high-pass filter processing; human visual system; low-pass filter processing; robust digital watermarking; Color; Discrete cosine transforms; Fractals; Humans; Information filtering; Information filters; Internet; Low pass filters; Robustness; Watermarking;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2002 6th International Conference on

Print_ISBN

0-7803-7488-6

Type

conf

DOI

10.1109/ICOSP.2002.1181179

Filename

1181179