نوع مقاله: مقاله پژوهشی
نویسندگان
1 کارشناس ارشد/دانشگاه آزاد اسلامی واحد رفسنجان
2 استادیار/دانشگاه آزاد اسلامی واحد نجف آباد
3 استادیار/دانشگاه خلیج فارس بوشهر
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Watermarking is used to protect copyright proof. Robustness index is the most important parameter that evaluates watermarking algorithm against different attacks such as noise and compression. In this paper, a novel semi- blind image watermarking algorithm based on joint wavelet transform (WT) and singular value decomposition (SVD) transform is proposed. In this algorithm, a new strategy is used to joint WT and SVD effectively. The most important advantage of this algorithm is robustness against a number of common attacks. Experimental results show that the proposed algorithm improves evaluation parameters more than other methods presented previously in the literature.
کلیدواژهها [English]
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