Shu Min PanShu Min PanRu Hong WenZhihong ZhouNan Run ZhouOptical multi-image encryption scheme based on discrete cosine transform and nonlinear fractional Mellin transform.2933-2953201776Multim. Tools Appl.2https://doi.org/10.1007/s11042-015-3209-xhttps://www.wikidata.org/entity/Q122923306db/journals/mta/mta76.html#PanWZZ17Ru Hong WenNanrun ZhouNan Run ZhouZhihong Zhou