A function is a rule that is applied to one set of values to give another set of values. A function can be illustrated on a graph – points are plotted as coordinates and joined by either a straight ...

Abstract: This paper deals mainly with various ‘distribution functions’ and ‘cumulative distribution functions’ pertaining to the modulus and to the angle of the ‘normal’ complex variate, for the case ...

Abstract: In this paper, we present a novel steganographic method for embedding of secret data in still grayscale JPEG image. The embedding is performed in DCT domain in JPEG file. Hiding a secret ...

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