Abstract:Abstract:The idea of partitioning a host image into small nonoverlapping blocks and embedding the watermark in these blocks based upon some property of the blocks has been in use for many years and is still very popular. While most of the watermarking techniques use a constant strength factor for the whole image, in the present watermarking scheme a flexible strength factor is used, which is derived from the standard deviations of the discrete wavelet transform coefficients of the selected high entropy nonover… Show more
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