Dynamic watermarking scheme for quantum images based on Hadamard transform.

Xianhua Song Shen Wang Ahmed A. Abd El-Latif Xiamu Niu

Published in: Multim. Syst. (2014)

Keyphrases

watermarking scheme
image data
geometric distortions
test images
ground truth
image matching
input image
image registration
copyright protection
hadamard transform
transform domain
digital watermarking
spread spectrum
geometric attacks
high frequency
random variables
pixel values
watermarking algorithm