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Conference Paper
Public Key Watermarking for Reversible Image Authentication
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- Authors
- Sang Kwang Lee, Young Ho Suh, Yo Sung Ho
- Issue Date
- 2006-10
- Citation
- International Conference on Image Processing (ICIP) 2006, pp.1409-1412
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we propose a new public key watermarking scheme for reversible image authentication where if the image is authentic, the distortion due to embedding can be completely removed from the watermarked image after the hidden data has been extracted. This technique utilizes histogram characteristics of the difference image and modifies pixel values slightly to embed more data than other lossless data hiding algorithm. We show that the lower bound of the PSNR(peak-signal-to-noise-ratio) values of watermarked images are 51.14 dB. Moreover, the proposed scheme is quite simple and the execution time is rather short. Experimental results demonstrate that the proposed scheme can detect any modifications of the watermarked image. ©2006 IEEE.
- KSP Keywords
- Difference image, Hidden data, Image Authentication, Lossless data hiding, Lower bound, Peak-Signal-to-Noise-Ratio(PSNR), Pixel values, Public Key, Signal noise ratio(SNR), execution time, watermarked image