Abstract
The digital revolution has resulted in explosion of knowledge. It has encouraged and motivated digitization of the intellectual artefact. This creates issues of piracy and copyright. In this paper, the authors propose a novel logo based watermarking scheme for image copyright protection using fuzzy inference system (FIS), discrete wavelet transform (DWT) and human visual system (HVS). Wavelet transform generates a hierarchical image data structure to represent an image at different resolution levels. The proposed scheme uses fuzzy inference system to adaptively insert logo watermark instead of using uniform thresholding. The weight of watermark is determined by human visual system characteristics and fuzzy inference system. The image is reconstructed by computing inverse discrete wavelet transform to get imperceptible image watermarking. The watermark is then recovered at the receiver end by applying DWT to watermarked image. General Terms Copyright Protection, Image Watermarking.
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