1. A method for use by an image processing system for processing an image, the method comprising: classifying the image by an image classifier of said image processing system; comparing the image to stored images in a database of said image processing system, by an image comparator of said image processing system; storing the image in said database if the image does not match one of the stored images; and storing a link to a matched image already stored in said database if the image matches one of the stored images.