1. A method of enhancing a quality attribute of an input image, comprising: computing dense correspondences between candidate exemplar images and the input image utilizing a dense image alignment technique, wherein the candidate exemplar images are from an image database, wherein the input image has a first level of the quality attribute, and wherein the candidate exemplar images have a second level of the quality attribute; warping the candidate exemplar images to align with the input image based upon the dense correspondences; and integrating patches from the candidate exemplar images as warped with the input image to generate an output image having the second level of the quality attribute.