An image processing method includes applying a segmentation engine to different mappings of a digital image, and generating primitives by tessellating non-congruent segments of the different mappings, where the primitives are defined by boundaries of the non-congruent segments in the different mappings. The method further includes classifying the primitives. Classifying the primitives is accomplished by assessing, using a plurality of classifiers, a quality of each segment of each mapping, and assigning a classification to each primitive based upon the assessing. Each of applying, generating and classifying is performed by a processor programmed by machine memory encoded with data.