Title :
Combining visual and detection models in spread-spectrum watermarking
Author :
Donescu, Ioana ; Nguyen, Eric
Author_Institution :
Canon Res. Centre, Rennes-Atalante, France
Abstract :
We study the combination of the just noticeable difference (JND) threshold with the probability of correct detection for each embedded bit, in the simplified context of fixed amplitude modulation. We show that we can theoretically calculate the minimum number of coefficients that need to be modulated in order to satisfy both visibility and reliability constraints. A method-dependent empirical capacity can be derived straightforwardly
Keywords :
amplitude modulation; channel capacity; copy protection; data compression; image coding; security of data; signal detection; spread spectrum communication; JND threshold; coefficients; correct detection probability; detection models; embedded bit; fixed amplitude modulation; image coding; just noticeable difference; method-dependent empirical capacity; reliability constraint; spread-spectrum watermarking; visibility constraint; visual models; Amplitude modulation; Constraint theory; Digital images; Discrete wavelet transforms; Reliability theory; Robustness; Spread spectrum communication; Statistics; Testing; Watermarking;
Conference_Titel :
Image Processing, 2000. Proceedings. 2000 International Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-6297-7
DOI :
10.1109/ICIP.2000.899547
