Nonlinear optical double image encryption using random-optical vortex in fractional Hartley transform domain - Singh, Hukum (Oficyna Wydawnicza Politechniki Wrocławskiej, 2017)
Optica Applicata, Vol. 47, 2017, nr 4, s. 557-578
Keywords: optyka; fractional Hartley transform (FrHT); image encryption; mean squared error; noise attacks; entropy