A Wavelet-Based Blind Digital Image Watermarking using Dynamic LSB Replacement (DLSBR) and Symmetric Key Cryptography
With advancement of technology and ease of access of digital information and its creation and transference, protection of copyrights for information security is of the prime concern. Digital watermarking gives copyright protection of digital images by impregnating additional information in the original cover image. Thus, watermarking prevents illegal copying by providing a method of enacting the ownership of a redistributed copy. In this paper, we have proposed a wavelet-based dynamic LSB replacement method, which serves the purpose by providing excellent robustness and imperceptibility. Moreover, the watermark is encrypted by a symmetric key cryptographic algorithm to make it secure from further eavesdropping.
KeywordsDigital watermarking LWT LSB replacement Symmetric Key Cryptography
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