Rodrigo Martín-Romo, José AugustoAlieva Krasheninnikova, TatianaCalvo Padilla, María Luisa2023-06-202023-06-202007-10-150030-401810.1016/j.optcom.2007.06.023https://hdl.handle.net/20.500.14352/51041© 2007 Elsevier B.V. Spanish Ministry of Education and Science is acknowledged for financial support, project TEC 2005-02180/MIC.Gyrator transform is a new tool for manipulation of two-dimensional signals such as images or laser beam profiles. Here we demonstrate various applications of the gyrator transform for image processing. Several aspects such as noise reduction, filtering and encryption in the gyrator domains are discussed. These operations can be performed by numerical calculations or by an appropriate optical set up.engjournal articlehttp://dx.doi.org/10.1016/j.optcom.2007.06.023http://www.sciencedirect.com/open access535Fractional Fourier DomainOptical-SystemsPhaseEncryptionAmplitudeÓptica (Física)2209.19 Óptica Física