Comparison of digital watermarking techniques

Author

Aparna, J.R. ; Ayyappan, Sonal

Author_Institution

Dept. of Comput. Sci., SCMS Sch. of Eng. & Technol., Ernakulam, India

fYear

2014

Firstpage

1

Lastpage

6

Abstract

Digital watermarking is the method of hiding digital data in any form of multimedia data such as image, audio, video, etc. Digital watermarks are used for verifying the integrity and authenticity of multimedia data and also used to prevent fraud and forgery. This paper performs a comparative analysis of different image watermarking techniques. The watermarking techniques based on DCT, DWT and a combination of DCT and DWT is implemented. These methods use Singular Value Decomposition (SVD) of the cover image and watermark for embedding the watermark. Different attacks are applied on the watermarked image in order to analyze the robustness of each algorithm.

Keywords

discrete cosine transforms; discrete wavelet transforms; image watermarking; singular value decomposition; DCT; DWT; SVD; digital image watermarking techniques; discrete cosine transform; discrete wavelet transform; multimedia data; singular value decomposition; Discrete cosine transforms; Discrete wavelet transforms; Frequency-domain analysis; PSNR; Robustness; Watermarking; Discrete Cosine Transform(DCT); Discrete Wavelet Transform(DWT); Robustness; Singular Value Decomposition(SVD); Watermark;

fLanguage

English

Publisher

ieee

Conference_Titel

Convergence of Technology (I2CT), 2014 International Conference for

Print_ISBN

978-1-4799-3758-5

Type

conf

DOI

10.1109/I2CT.2014.7092189

Filename

7092189