Title :
Circularly symmetric watermark embedding in 2-D DFT domain
Author :
Solachidis, V. ; Pitas, I.
Author_Institution :
Dept. of Inf., Thessaloniki Univ., Greece
Abstract :
This paper presents an algorithm for rotation and scale invariant watermarking of digital images. An invisible mark is embedded in magnitude of the DFT domain. It is robust to compression, filtering, cropping, translation and rotation. The watermark introduces image changes that are invisible to the human eye. The detection algorithm does not require the original image
Keywords :
copyright; discrete Fourier transforms; image coding; security of data; signal detection; transform coding; 2D DFT domain; circularly symmetric watermark embedding; compression; copyright protection; cropping; detection algorithm; digital image protection; digital images; filtering; rotation invariant watermarking; scale invariant watermarking; translation; watermark detection; Digital images; Filtering; Fourier transforms; Frequency; Humans; Image coding; Image processing; Informatics; Robustness; Watermarking;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.757589
