What is maximum amount of information (channel capacity for watermarking) that one can embed in a given image ?
With most techniques, one can identify an upper limit on the safe message size that can be embedded in a “typical” cover. This is called steganographic capacity and it is unknown even for the simplest methods out there, such as the LSB embedding. You can fine some papers dicussing the channel capacity in Ching-Yung Lin, Watermarking and Digital Signature Techniques for MulIt a Authentication and Copyright Protection, Ph.D. Thesis, Columbia Univ., 2000. Chapter 5: Theoretical Watermarking Capacity of Images which can be downloaded from http://www.ctr.columbia.edu/~cylin/publications.html [Kaushal M. Solanki] We, here at UCSB, are working on image-adaptive high volume data hiding, which I think might be applicable in this case. Using these techniques one can hide from 16Kbits to 55Kbits of data depending on the images and robustness required. I would suggest you to look at the web pages at: http://vision.ece.ucsb.
With most techniques, one can identify an upper limit on the safe message size that can be embedded in a “typical” cover. This is called steganographic capacity and it is unknown even for the simplest methods out there, such as the LSB embedding. You can fine some papers dicussing the channel capacity in Ching-Yung Lin, Watermarking and Digital Signature Techniques for MulIt a Authentication and Copyright Protection, Ph.D. Thesis, Columbia Univ., 2000. Chapter 5: Theoretical Watermarking Capacity of Images which can be downloaded from http://www.ctr.columbia.edu/~cylin/publications.html [Kaushal M. Solanki] We, here at UCSB, are working on image-adaptive high volume data hiding, which I think might be applicable in this case. Using these techniques one can hide from 16Kbits to 55Kbits of data depending on the images and robustness required. I would suggest you to look at the web pages at: http://vision.ece.ucsb.edu/hiding/ Recently, we also presented a paper at ICASSP 02 titled “High v
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