1. A method, comprising: applying a saliency estimation technique to compute a saliency map of an image that includes image regions of the image; determining a salient image region of the image from the saliency map; removing an image region that corresponds to the salient image region from the image; and iteratively determining a subsequent salient image region of the image utilizing the saliency estimation technique to recompute the saliency map of the image with the image region removed, and removing an image region that corresponds to the subsequent salient image region from the image.