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International Journal of Optics
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International Journal of Optics
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2015
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Article
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Fig 12
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Research Article
Optical Image Encryption Using Devil’s Vortex Toroidal Lens in the Fresnel Transform Domain
Figure 12
MSE plots for three types of noise against density/variance for (a) grayscale image Lena and (b) binary image OPT.
(a)
(b)