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a new image watermarking algorithm by using contourlet transform accompanied by pso algorithm
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نویسنده
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jalali khosro ,vahidi javad ,mohseni saleh ,dehbovid hadi
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منبع
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international journal of nonlinear analysis and applications - 2021 - دوره : 12 - شماره : Special Is - صفحه:563 -570
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چکیده
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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.
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کلیدواژه
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watermarking ,contourlet transform ,pso algorithm
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آدرس
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islamic azad university, nour branch, department of electrical engineering, iran, iran university of science and technology, department of mathematics, iran. university of south africa (unisa), department of mathematical sciences, south africa, islamic azad university, nour branch, department of electrical engineering, iran, islamic azad university, nour branch, department of electrical engineering, iran
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پست الکترونیکی
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hadi.dehbovid@gmail.com
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Authors
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