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Improved Performance by Parametrizing Wavelet Filters for Digital Image Watermarking
Signal & Image Processing An International Journal
In recent years, watermarking has become an attractive field in areas like copyright protection, image authentication and biomedical engineering. Many literatures have reported about discrete wavelet transform (DWT) watermarking techniques for data security. However, DWT based watermarking schemes are found to be less robust against image processing attacks. In this paper, an attempt is made to develop a scheme based on Redundant Discrete Wavelet Transform (RDWT). The robustness and security ofdoi:10.5121/sipij.2012.3103 fatcat:xiy73d4ocrdrrgpdirvlre5ryq