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Kavadia, Charu
- A Literature Review on Water Marking Techniques
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1 Department of Computer Science & Engineering, Arya College of Engineering & I.T., Jaipur, IN
1 Department of Computer Science & Engineering, Arya College of Engineering & I.T., Jaipur, IN
Source
International Journal of Scientific Engineering and Technology, Vol 1, No 4 (2012), Pagination: 8-11Abstract
This paper presents a review on different digital watermarking techniques and their properties. The main reason for development of digital watermarking research is to protect intellectual properties of the digital world. Since the recent technology makes it easy copying the digital contents without any restrictions and editing without any prohibitive professional efforts. In the absence of protecting techniques, it difficult to rely on digital storage & communication systems for secure medical, business, and military applications. Watermarking is one of the most common solutions to make the data transferring secure from the illegal interference.Keywords
Watermarking, Data Security.Full Text
- A Robust Secured Watermarking Approach Using DCT-DWT & Chaotic Maps
Abstract Views :154 |
PDF Views:0
Authors
Affiliations
1 Department of Computer Science & Engineering, Arya College of Engineering & I.T., Jaipur, IN
1 Department of Computer Science & Engineering, Arya College of Engineering & I.T., Jaipur, IN
Source
International Journal of Scientific Engineering and Technology, Vol 1, No 4 (2012), Pagination: 12-15Abstract
In this paper an efficient digital watermarking technique is proposed for copyright protection. The proposed watermarking algorithm a binary logo watermark security is also maintained by using chaotic map and then after it is embedded by modifying the appropriate subband in the wavelet domain. Level 2 and level 3 wavelet decompositions are utilized to embed the digital watermark. The approach can effectively hide a robust watermark due to the exploitation of the characteristics of the human visual system in wavelet domain. The watermark is detected by comparing the correlations between the wavelet coefficients and the watermarking code at level 2 and level 3 with the stored side information. The performance of the proposed watermarking is robust to a variety of image processing techniques, such as JPEG compression, sharpening, resizing, and geometric operations.Keywords
Digital Watermark, Discrete Wavelet Transform, Chaotic Encryption.Full Text