An Efficient Algorithm for Image Steganography or Visible Watermarking

Authors : Rafidison Maminiaina Alphonse; Ramafiarisona Hajasoa Malalatiana; Randriamitantsoa Paul August

Volume/Issue : Volume 5 - 2020, Issue 11 - November

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Commonly, a specific algorithm is dedicated for image steganography and one else for watermarking. This publication is a presentation of one method which can manage both. Watermark or secret image is binary image as default and the medium can be an image color or gray level with size greater than the first one. Singular Value Decomposition (SVD) and Discrete wavelet transform (DWT) are the mathematic approach used. They are popular on these domains but the way to operate is different for each algorithm. An insertion of new two parameters is the particularity of our method, in which we decide if we process with steganography or watermarking. Note that we are talking here about visible

Keywords : Steganography; Visible Watermarking; Discret Wavelet Transform; Singular Value Decomposition.


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