Title :
Digital watermarking capacity research
Author :
Zhang, Fan ; Zhang, Honghin
Author_Institution :
Coll. of Comput. Sci., Beijing Univ. of Technol., China
Abstract :
Image watermarking capacity is an evaluation of how much information can be hidden in a digital image. Watermarking capacity research studies how to transmit more watermark information. In watermarking schemes, the image is considered as a communication channel to transmit messages. Watermark power should be constrained according to the content of the image. We analyse the shortcomings of some previous watermarking capacity methods and present a watermarking capacity method using the noise visibility function, and discuss the watermarking capacity of blind watermarking and non-blind watermarking.
Keywords :
image coding; random noise; watermarking; blind watermarking; communication channel; digital watermarking capacity; image watermarking capacity; noise visibility function; nonblind watermarking; watermark power; Communication channels; Computer science; Decoding; Digital images; Educational institutions; Humans; Information analysis; Pixel; Robustness; Watermarking;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1346301
