Image Watermarking Using 3-Level Discrete Wavelet Transform (DWT)

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Nikita Kashyap 1,* G.R.Sinha 2

1. Department of Electronics & Telecommunication Engineering, Shankaracharya Technical Campus, Bhilai, India

2. Faculty of Engg & Tech, Shri Shankaracharya Technical Campus, Bhilai, India

* Corresponding author.


Received: 3 Dec. 2011 / Revised: 10 Jan. 2012 / Accepted: 5 Feb. 2012 / Published: 8 Mar. 2012

Index Terms

Image watermarking, 3-level DWT, wavelet transform, MSE, PSNR


We have implemented a robust image watermarking technique for the copyright protection based on 3-level discrete wavelet transform (DWT). In this technique a multi-bit watermark is embedded into the low frequency sub-band of a cover image by using alpha blending technique. The insertion and extraction of the watermark in the grayscale cover image is found to be simpler than other transform techniques. The proposed method is compared with the 1-level and 2-level DWT based image watermarking methods by using statistical parameters such as peak-signal-to-noise-ratio (PSNR) and mean square error (MSE). The experimental results demonstrate that the watermarks generated with the proposed algorithm are invisible and the quality of watermarked image and the recovered image are improved.

Cite This Paper

Nikita Kashyap, G. R. SINHA, "Image Watermarking Using 3-Level Discrete Wavelet Transform (DWT)", International Journal of Modern Education and Computer Science (IJMECS), vol.4, no.3, pp.50-56, 2012. DOI:10.5815/ijmecs.2012.03.07


[1]Ibrahim, R. and Kuan, T. S., Steganography Imaging (SIS): Hiding Secret Message inside an Image. Proceedings of the World Congress on Engineering and Computer Science, 2010, San Francisco, USA.
[2]Er-Hsien Fu, Literature Survey on Digital Image Watermarking, EE381K Multidimensional Signal Processing, 1998.
[3]L. Robert, T. Shanmugapriya, A Study on Digital Watermarking Techniques, International Journal of Recent Trends in Engineering, 2009.
[4]G. Rosline Nesa Kumari, B. Vijaya Kumar, L. Sumalatha, and Dr V. V. Krishna, Secure and Robust Digital Watermarking on Grey Level Images, International Journal of Advanced Science and Technology, 2009.
[5]Baisa L. Gunjal, R.R. Manthalkar, An overview of transform domain robust digital image watermarking algorithms, Journal of Emerging Trends in Computing and Information Sciences, 2010.
[6]Darshana Mistry, Comparison of Digital Watermarking methods, 21st Computer Science Seminar SA1-T1-7, IJCSE, 2010.
[7]R. G. van Schyndel, A. Z. Tirkel, and C. F. Osborne, A digital watermark, in Proc. IEEE Int. Conf. Image Processing (ICIP), 1994.
[8]Blossom Kaur, Amandeep Kaur, Jasdeep Singh, Steganographic Approach for hiding Image in DCT Domain, International Journal of Advances in Engineering & Technology, July 2011.
[9]W. Hong and M. Hang, Robust Digital Watermarking Scheme for Copy Right Protection, IEEE Trans. Signal Process, vo.l2, pp. 1- 8, 2006.
[10]X. Xia, C. Boncelet, and G. Arce, A Multiresolution Watermark for Digital Images, Proc. IEEE Int. Conf. on Image Processing, Oct. 1997.
[11]Akhil Pratap Shing, Agya Mishra, Wavelet Based Watermarking on Digital Image, Indian Journal of computer Science and Engineering, 2011.
[12]Bhatnagar, G. and Raman, B., A new robust reference watermarking scheme based on DWT-SVD, Elsevier B.V. All rights reserved, 2008.
[13]Barni M, Bartolini F, Piva, An Improved Wavelet Based Watermarking Through Pixelwise Masking, IEEE transactions on image processing, 2001.
[14]D. Kundur and D. Hatzinakos, Digital Watermarking using Multiresolution Wavelet Decomposition, Proceedings, IEEE International Conference Acoustic, Speech, Signal Processing, 1998.
[15]Nilanjan Dey, Anamitra Bardhan Roy, Sayantan Dey, A novel approach of color image hiding using RGB color planes and DWT, International Journal of Computer Applications, 2011.