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1. Optimum decoder for multiplicative spread spectrum image watermarking with Laplacian modeling

N. Zarmehi; M. R. Aref

Volume 8, Issue 2 , Summer and Autumn 2016, , Pages 131-139

http://dx.doi.org/10.22042/isecure.2016.8.2.4

Abstract
  This paper investigates the multiplicative spread spectrum watermarking method for the image. The information bit is spreaded into middle-frequency Discrete Cosine Transform (DCT) coefficients of each block of an image using a generated pseudo-random sequence. Unlike the conventional signal modeling, ...  Read More