Home // UBICOMM 2014, The Eighth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies // View article
Authors:
Su-Yeon Shin
Hyang-Mi Yoo
Jae-Won Suh
Keywords: Reversible watermarking; Histogram shifting; Predicted image; Reference pixel; Directional interpolation
Abstract:
Reversible watermarking is a technique that can recover an undistorted original image from a watermarked image. The proposed watermark embedding algorithm uses histogram shifting of the difference image between a modified original image and its predicted one. In the proposed algorithm, the predicted image that works well increases the embedding capacity, so that the reference pixels for prediction are adaptively selected and filtered and the other predicted pixels are directionally interpolated with the reference pixels. The simulation results demonstrate that the proposed algorithm generates good performances in the peak signal-to-noise ratio (PSNR) values and the embedding capacity.
Pages: 147 to 150
Copyright: Copyright (c) IARIA, 2014
Publication date: August 24, 2014
Published in: conference
ISSN: 2308-4278
ISBN: 978-1-61208-353-7
Location: Rome, Italy
Dates: from August 24, 2014 to August 28, 2014