• Corpus ID: 15916700

Digital Watermarking-A Combined Approach by DWT , Chirp-Z and Fast Walsh-Hadamard Transform

  title={Digital Watermarking-A Combined Approach by DWT , Chirp-Z and Fast Walsh-Hadamard Transform},
  author={G. Savakar and Anand Ghuli},
Digital Image Watermarking is one of the ways to protect intellectual property right and copyright of the information owner. Fidelity, Capacity and Robustness are the important requirements of digital watermarking techniques, but these requirements compete with each other; if one is improved the other two are affected. This paper presents a combined approach of DWT, Chirp-Z and Fast Walsh-Hadamard Transforms for digital image watermarking to minimize the gap between robustness and fidelity with… 
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