Ghazy M. Rateb Assassa

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In this paper, we present an improved approach to the " breaking the F5 algorithm ". The key idea is to search for an " optimal " value of β (the probability that a non-zero AC coefficient will be modified) for the image under consideration. Rather than averaging the values of β for 64 shifting steps worked on an image, an optimal β is determined that(More)
In this paper, a spiral-based Least Significant Bit (LSB) approach for hiding messages in images is presented. The proposed approach is based on the LSB substitution technique applied on RGB color components of BMP images. The key idea is to divide the image into segments and process them differently. The presented approach considers three algorithms(More)
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