Research Article Open Access

Robust Image Watermarking Using Discrete Wavelet Transform

Dhandapani Samiappan and Krishnan Ammasi

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.

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

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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)