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A new image watermarking algorithm by using contourlet transform accompanied by PSO algorithm | ||
| International Journal of Nonlinear Analysis and Applications | ||
| دوره 12، Special Issue، اسفند 2021، صفحه 563-570 اصل مقاله (283.23 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22075/ijnaa.2021.5356 | ||
| نویسندگان | ||
| Khosro Jalali1؛ Javad Vahidi* 2، 3؛ Seyed Saleh Mohseni1؛ Hadi Dehbovid1 | ||
| 1Department of Electrical Engineering, Nour Branch, Islamic Azad University, Nour, Iran | ||
| 2Department of Mathematics, Iran University of Science and Technology, Tehran 1684613114, Iran | ||
| 3Department of Mathematical Sciences, University of South Africa, UNISA0003, South Africa | ||
| تاریخ دریافت: 23 دی 1399، تاریخ بازنگری: 30 اردیبهشت 1400، تاریخ پذیرش: 24 خرداد 1400 | ||
| چکیده | ||
| One of the ways to enhance the security and concealment of data used today is image watermarking. In image watermarking operation, we try to hide image inside another image without letting others know about the hidden image. In this paper, Contourlet Transform and SVD Transform are used to embedded watermark in the host image. The PSO Optimization Algorithm is also used in the watermark extraction step to find the best scale factor. The results of the proposed algorithm in this article show an improvement over the comparative methods. | ||
| کلیدواژه‌ها | ||
| Watermarking؛ Contourlet Transform؛ PSO Algorithm | ||
| مراجع | ||
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