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Multilevel Image based Data Security using Combined Approach of Lsb_Dct Watermarking
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 80 - Number 16 |
| Year of Publication: 2013 |
| Authors: Ranjeet Kumar Singh, Deepak Gupta, Santosh Kumar Singh |
10.5120/13951-1392
|
Ranjeet Kumar Singh, Deepak Gupta, Santosh Kumar Singh . Multilevel Image based Data Security using Combined Approach of Lsb_Dct Watermarking. International Journal of Computer Applications. 80, 16 ( October 2013), 10-14. DOI=10.5120/13951-1392
Abstract
Digital watermarking is a method which is used to verify texts, image, video etc. Watermarking Technique is not only used for Authentication, it's also used for security, image protection, rights of documents. In this perspective experiment we used edge detection technique in watermarking for the purpose of highly authentication of image. Here we used combined approach of LSB-DCT watermarking for multilevel image based data security, in LSB-DCT approach author used edge of original image as a watermark image which is calculated by sobel edge detection technique this watermark is embedded on original image with the help of LSB watermark approach. After the first watermarking process is completed author embedded next watermark on the original image with the help of DCT Watermarking. In this experiments author explain effect of noise on dual watermarked image with the help of PSNR, SNR and Correlation coefficient.
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