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With the rapid use of digital data in information technology and multimedia, piracy and malicious manipulations have become a common concern, thus it is inevitable that the digital content is protected. Hence copyright protection has become a vital issue. Digital watermarking has emerged as a solution to this problem. In this paper, a watermarking technique is proposed and implemented. In which the original image is sorted out to another form by applying zigzag process followed by DCT and SVD. Watermark is then embedded by modifying the singular values and extraction of watermark is the inverse process of embedding. The deliberated algorithm gives good Peak Signal to Noise Ratio (PSNR) which ensures good imperceptibility and Normalized Cross Correlation (NCC) which ensures more robustness against different kinds of noise such as Histogram equalization, JPEG compression, Speckle noise, Gaussian noise, Salt and Pepper noise, Cropping, Rotation, Sharpening and so on. The human eyes are more sensitive to noise in lower- frequency band than higher frequency. The zigzag scanning process is implied for energy distribution from high to low frequency as well as from low to high frequency with the same manner.
Md. Maklachur Rahman, Md. Shale Ahammed, Md. Rishad Ahmed, Mohammed Navid Izhar. 2017. "A Semi Blind Watermarking Technique for Copyright Protection of Image Based on DCT and SVD Domain". Global Journal of Research in Engineering - F: Electrical & Electronic GJRE-F Volume 16 (GJRE Volume 16 Issue 24 (F7)).
Crossref Journal DOI 10.17406/gjre
Print ISSN 0975-5861
e-ISSN 2249-4596
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Total Score: 104
Country: Bangladesh
Subject: Global Journal of Research in Engineering - F: Electrical & Electronic
Authors: Md.Maklachur Rahman, Md.Shale Ahammed, Md.Rishad Ahmed, Mohammed Navid Izhar (PhD/Dr. count: 0)
View Count (all-time): 427
Total Views (Real + Logic): 1395
Total Downloads (simulated): 95
Publish Date: 2016 10, Mon
Monthly Totals (Real + Logic):
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