22 January 1999 New watermarking method using entropy-based region segmentation
Author Affiliations +
Proceedings Volume 3528, Multimedia Systems and Applications; (1999) https://doi.org/10.1117/12.337445
Event: Photonics East (ISAM, VVDC, IEMB), 1998, Boston, MA, United States
We propose a novel watermarking method. The proposed method insets a watermark information not into a whole image region but only into interesting regions. To extract the interesting region, we divide an original image into sub- blocks by sing Chang's PIM criteria for a region segmentation. Considering a directional information and a frequency band, we insert the watermark information into the sub-block in DCT domain. With use of it, the proposed method gets a much less damaged image in comparison into the other methods. And this result image is more robust to the attacks form outside. Also the proposed method can reduce the distortion in comparison with the other methods which utilize the whole image as an interesting region.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jae-Wook Shin, Jae-Wook Shin, Dong-Seok Jeong, Dong-Seok Jeong, } "New watermarking method using entropy-based region segmentation", Proc. SPIE 3528, Multimedia Systems and Applications, (22 January 1999); doi: 10.1117/12.337445; https://doi.org/10.1117/12.337445


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