1. A computer-implemented feature extraction method for classifying pixels of a digitized pathology image, the method comprising: generating a plurality of characterized pixels from a digitized pathology image; determining in a first layer feature analysis a plurality of first layer confidence scores based on the plurality of characterized pixels, wherein the confidence scores represent a first likelihood of each pixel belonging to a specific classification; determining in a second layer feature analysis a plurality of final recognition scores based on the plurality of characterized pixels and the plurality of first layer confidence scores, wherein the recognition scores represent a final likelihood of each pixel belonging to a specific classification; and classifying part or all of the digitized pathology image based on the final recognition scores.