EWA: An exemplar-based watermarking attack

Author

Taherinia, Amir Hossein ; Jamzad, Mansour

Author_Institution

Dept. of Comput. Eng., Sharif Univ. of Technol., Tehran, Iran

fYear

2011

fDate

14-16 Nov. 2011

Firstpage

1

Lastpage

5

Abstract

In this paper, we used image inpainting as a means for reconstruction of small damaged portions of a watermarked image so that the hidden watermark is not detectable afterwards. Our new watermarking attack algorithm extends the exemplar-based inpainting method, and then we apply it to intended noisy watermarked images to alter the watermark detection process. Our approach is completely free from any pre-assumption on the watermarking algorithm or any other parameters that is used during the watermark embedding procedure. The average PSNR/SSIM of the watermarked image after applying the proposed attack is more than 35/0.98 and the average NC for extracted watermark is lowers than 0.5, so theoretically, the watermark is not detectable.

Keywords

feature extraction; image denoising; image reconstruction; image watermarking; EWA; average PSNR/SSIM; exemplar-based inpainting method; exemplar-based watermarking attack; hidden watermark; image inpainting; noisy watermarked images; small damaged portion reconstruction; watermark detection process; watermark embedding procedure; watermark extraction; watermarking attack algorithm; Benchmark testing; Image edge detection; Image segmentation; PSNR; Robustness; Watermarking; Benchmarks; Image inpainting; Watermarking attacks;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Technology and Multimedia (ICIM), 2011 International Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4577-0988-3

Type

conf

DOI

10.1109/ICIMU.2011.6122766

Filename

6122766