Improvement of Image Steganography Using Discrete Wavelet Transform
Improvement of Image Steganography Using Discrete Wavelet Transform

Manal K. Oudah; Aqeela N. Abed; Rula S. Khudhair; Saad M. Kaleefah

Volume 38, 1A , January 2020, , Page 83-87

https://doi.org/10.30684/etj.v38i1A.266

Abstract
  Recently the Discrete-Wavelet-Transform (DWT) has been represented as signal processing powerful tool to separate the signal into its band frequency components. In this paper, improvement ...  Read More ...
Random Insertion Watermarking By Computing Angle Between Two Lines In Blue Components On Postage Stamp
Random Insertion Watermarking By Computing Angle Between Two Lines In Blue Components On Postage Stamp

Nada Mahdi al- Husseiny

Volume 29, Issue 7 , May 2011, , Page 1308-1328

https://doi.org/10.30684/ etj.29.7.7

Abstract
  This paper presents a new approach for watermarking by using geometric analytic and mathematical model providing robustness to embed the watermarking in postage stamp (ps) image, using ...  Read More ...