A novel color image encryption scheme using fractional-order hyperchaotic system and DNA sequence operations
Zhang Li-Min, Sun Ke-Hui, Liu Wen-Hao, He Shao-Bo
       

(color online) Histograms of the original Lena image and its encrypted image. (a) Original image in R channel; (b) original image in G channel; (c) original image in B channel; (d) encrypted image in R channel; (e) encrypted image in G channel; (f) encrypted image in B channel.