Retraction notice to ``Fresnelet approach for image encryption in the algebraic frame'' [Applied Mathematics and Computation 334 (2018) 343–355] - Farwa, Shabieh; Muhammad, Nazeer; Bibi, Nargis; Haider, Sajjad A.; Naqvi, Syed R.; Anjum, Sheraz (Applied mathematics and computation, 2019)