Wang, Zhe and Marshall, S. (2006) Dual watermarking algorithm exploiting the logarithmic characteristic of the human eye's sensitivity to luminance. In: 14th European Signal Processing Conference (EUSIPCO 2006),, 2006-09-04 - 2006-09-08, Florence.
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
The proposed colour image watermarking algorithm exploits the human visual system to optimise the trade off between the visibility and the robustness of the watermark. A less sensitive colour channel is selected to be watermarked and central watermarking is used to give the algorithm an extra robustness to image cropping. The DWT and DCT transforms are combined to pack the most energy into a few coefficients. The logarithmic sensitivity of the Human eye to luminance is exploited by assigning pixels into groups with different luminance ranges and watermarking them with different insertion powers. Test results show that the proposed algorithm has very good performance and is robust to several common image manipulations.
| Item type: | Conference or Workshop Item (Paper) |
|---|---|
| ID code: | 37285 |
| Keywords: | dual watermarking algorithm, logarithmic characteristic, human eye's, sensitivity, luminance, Electrical engineering. Electronics Nuclear engineering |
| Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
| Department: | Faculty of Engineering > Design, Manufacture and Engineering Management Faculty of Engineering > Electronic and Electrical Engineering |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 01 Feb 2012 15:18 |
| Last modified: | 04 Oct 2012 17:19 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/37285 |
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