TITLE:
A Watermarking Algorithm Based on Wavelet and Hadamard Transform for Color Image
AUTHORS:
Hongshou Yan, Weimin Yang
KEYWORDS:
Digital Watermarking; Hadamard Transform(HT); Discrete Wavelet Transform(DWT); Color Image; Copyright Protection
JOURNAL NAME:
Journal of Software Engineering and Applications,
Vol.6 No.3B,
April
11,
2013
ABSTRACT: Digital image watermarking is a useful solution to the problem of information security, copyright and network security. In this paper, we propose a watermarking algorithm for color image based HT and DWT. A binary image as watermark is embedded into green component or blue component of color image. The algorithm can satisfy the transparence and robustness of the watermarking system very well. The experiment based on this algorithm demonstrates that the watermarking is robust to the common signal processing techniques including JPEG compressing, adding noise, low pass filter, and mosaic.