Title :
An oblivious robust digital watermark technique for still images using DCT phase modulation
Author :
Alturki, Faisal ; Mersereau, R.
Author_Institution :
Center for Signal & Image Process., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Digital watermarking is the process of secretly embedding a short sequence of information inside a digital source without changing its perceptual quality. We present a new oblivious digital watermarking method for copyright protection of still images. The technique is based on modifying the sign of a subset of low frequency DCT magnitude coefficients. The robustness to a number of standard image processing attacks is demonstrated using the criteria of the latest Stirmark test
Keywords :
copyright; discrete cosine transforms; image coding; phase modulation; security of data; transform coding; DCT phase modulation; Stirmark test; copyright protection; digital source; low frequency DCT magnitude coefficients; oblivious robust digital watermark; perceptual quality; short information sequence; standard image processing attacks robustness; still images; Art; Authentication; Copyright protection; Discrete cosine transforms; Frequency; Intellectual property; Phase modulation; Robustness; Testing; Watermarking;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.859218
