Research Article Open Access

Robust Image Watermarking Using Discrete Wavelet Transform

Dhandapani Samiappan1 and Krishnan Ammasi1
  • 1 ,
Journal of Computer Science
Volume 7 No. 1, 2011, 1-5

DOI: https://doi.org/10.3844/jcssp.2011.1.5

Submitted On: 17 October 2010 Published On: 16 December 2010

How to Cite: Samiappan, D. & Ammasi, K. (2011). Robust Image Watermarking Using Discrete Wavelet Transform. Journal of Computer Science, 7(1), 1-5. https://doi.org/10.3844/jcssp.2011.1.5

Abstract

Problem statement: Digital Watermarking have gained popularity in recent years as a means of protecting multimedia data from illegal copying and unlawful reproduction. It is mainly used for copyright protection of multimedia data. Approach: In this study an image watermarking algorithm which is blind (do not require the presence of host image for detection) and robust is proposed. Results: The proposed watermarking scheme embeds the watermark in the Discrete Wavelet Transform (DWT) domain. The watermark is a binary logo and is embedded in the subband of the wavelet decomposition. Conclusion: This watermarking scheme is robust to several attacks like JPEG compression, rotation, Gaussian filtering, median filtering, cropping, scaling, sharpening, Gaussian noise and salt and pepper noise.

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Keywords

  • Digital watermarking
  • robustness
  • Discrete Wavelet Transform (DWT)
  • attacks
  • Least Significant Bits (LSB)
  • copyright protection
  • approximation
  • horizontal
  • Human Visual System (HVS)