A comparison between the performance of DWT and LWT in image watermarking

Dujan B. Taha (Software Engineering Department, College of Computer Science and Mathematics, Mosul University, Iraq)
Taha Basheer Taha (IT Department, Faculty of Sciences, Tishk International University, Erbil (44001), Iraq)
Najla Badie Al Dabagh (Computer Science Department, College of Computer Science and Mathematics, Mosul University, Iraq)

Bulletin of Electrical Engineering and Informatics
Vol 9, No 3: June 2020

Image watermarking algorithms can be implemented using time domain or frequency domain-based algorithms. Frequency domain watermarking produces watermarks with higher robustness; hence, many attempts have been proposed in literature using different transformations as DCT, SVD, and DWT. DWT was widely used for many reasons as its spatio-temporal feature, in which the alteration of certain portion will affect only the affected portion. In this paper an experimental comparison between the traditional DWT and the second generation of wavelet which is LWT is initiated. The experimental tests evaluated the performance of both transforms in terms of image quality and watermark robustness.