1. A computer-implemented method for classifying a plurality of field images, the method comprising: receiving the plurality of field images associated with a field; determining, with one or more processors, stroke features for each of the plurality of field images; analyzing, with the one or more processors, the stroke features to determine one or more patterns; classifying the plurality of field images into one or more groups based on the one or more patterns; retrieving field images in a first group from the one or more groups; determining a representative image from the retrieved field images based on the stroke features; replacing the field images of the first group with the representative image; and generating a table with the plurality of field images including the representative image for the field images that are classified as being part of the first group.