Circularly symmetric watermark embedding in 2-D DFT domain

Authors:
V. Solachidis;I. Pitas
Affiliations:
Dept. of Inf., Thessaloniki Univ., Greece;-
Venue:
ICASSP '99 Proceedings of the Acoustics, Speech, and Signal Processing, 1999. on 1999 IEEE International Conference - Volume 06
Year:
1999

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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.