In this paper,a novel super-resolution(SR) method for color images based on simultaneous sparse approximation(SSA) is presented to overcome the problems of color information loss and perceptible color deviation in common super-resolution(SR) reconstruction methods.The multichannel data is unified for simultaneous sparse coding to make sure the same sparsity patterns.The expression ability of prior information is enhanced because of considering all channels and the correlation among them.Our meth...