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Research Article | Open Access |

Performance Comparison of DCT and Walsh Transforms for Watermarking using DWT-SVD

Author 1: Dr.H.B. Kekre Author 2: Dr.Tanuja Sarode Author 3: Shachi Natu
International Journal of Advanced Computer Science and Applications (IJACSA) · Vol. 4, No. 2 · Published 2013 · Cited by 11

DOI: https://doi.org/10.14569/IJACSA.2013.040220

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Abstract

This paper presents a DWT-DCT-SVD based hybrid watermarking method for color images. Robustness is achieved by applying DCT to specific wavelet sub-bands and then factorizing each quadrant of frequency sub-band using singular value decomposition. Watermark is embedded in host image by modifying singular values of host image. Performance of this technique is then compared by replacing DCT by Walsh in above combination. Walsh results in computationally faster method and acceptable performance. Imperceptibility of method is tested by embedding watermark in HL2, HH2 and HH1 frequency sub-bands. Embedding watermark in HH1 proves to be more robust and imperceptible than using HL2 and HH2 sub-bands.

Keywords

Discrete Wavelet Transform (DWT) Discrete Cosine Transform (DCT) Singular Value Decomposition (SVD) watermarking.

How to Cite this Article

Kekre, D., Sarode, D., & Natu, S. (2013). Performance Comparison of DCT and Walsh Transforms for Watermarking using DWT-SVD. International Journal of Advanced Computer Science and Applications, 4(2). https://doi.org/10.14569/IJACSA.2013.040220

Kekre, Dr.H.B., et al.. "Performance Comparison of DCT and Walsh Transforms for Watermarking using DWT-SVD." International Journal of Advanced Computer Science and Applications, vol. 4, no. 2, 2013, https://doi.org/10.14569/IJACSA.2013.040220.

@article{Kekre2013,
  title     = {Performance Comparison of DCT and Walsh Transforms for Watermarking using DWT-SVD},
  journal   = {International Journal of Advanced Computer Science and Applications},
  volume    = {4},
  number    = {2},
  year      = {2013},
  publisher = {The Science and Information Organization},
  author    = {Dr.H.B. Kekre and Dr.Tanuja Sarode and Shachi Natu},
  doi       = {10.14569/IJACSA.2013.040220},
  url       = {https://doi.org/10.14569/IJACSA.2013.040220}
}

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