Title :
Self-similar ring shaped watermark embedding in 2-D DFT domain
Author :
Solachidis, V. ; Pitas, I.
Author_Institution :
Department of Informatics, Aristotle University of Thessaloniki, Box 451, Thessaloniki 540 06, Greece
Abstract :
A new watermarking algorithm for still images is presented in this paper. The watermark is embedded in magnitude of the DFT domain and introduces image changes that are invisible to the human eye. It is robust to compression, filtering, cropping, translation, rotation and scaling. The detection algorithm does not require the original image. The watermark has a self-similar structure that accelerates the detection procedure.
Keywords :
Correlation; Discrete Fourier transforms; Frequency-domain analysis; Image coding; Robustness; Signal to noise ratio; Watermarking;
Conference_Titel :
Signal Processing Conference, 2000 10th European
Print_ISBN :
978-952-1504-43-3
