Title :
Comparison of digital watermarking techniques
Author :
Aparna, J.R. ; Ayyappan, Sonal
Author_Institution :
Dept. of Comput. Sci., SCMS Sch. of Eng. & Technol., Ernakulam, India
Abstract :
Digital watermarking is one of the effective methods for preventing illegal copyright of digital media. It is the process of hiding digital data in any form of multimedia data such as image, audio, video, etc. This paper performs a comparative analysis of different image watermarking techniques. The watermarking techniques based on DCT and SVD, DWT and SVD and a combination of DCT and DWT is implemented. The DCT+DWT method is also experimented by dividing the cover image and watermark into four equal parts and then performing the embedding technique. Different attacks are applied on the watermarked image in order to analyze the robustness of each algorithm.
Keywords :
copyright; data encapsulation; discrete cosine transforms; discrete wavelet transforms; image coding; image watermarking; singular value decomposition; DCT; DWT; SVD; cover image; digital data hiding; digital watermarking techniques; discrete cosine transform; discrete wavelet transform; illegal copyright prevention; image watermarking; singular value decomposition; Discrete cosine transforms; Discrete wavelet transforms; Noise; Optical character recognition software; Watermarking; Discrete Cosine Transform (DCT); Discrete Wavelet Transform (DWT); Robustness; Singular Value Decomposition (SVD); Watermark;
Conference_Titel :
Computation of Power, Energy, Information and Communication (ICCPEIC), 2014 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4799-3826-1
DOI :
10.1109/ICCPEIC.2014.6915345
