1. An automated, computerized method for processing an image, comprising the steps of: providing an image file depicting an image, in a computer memory; providing a multi-class classifier trained to identify edges in an image relative to computer actions to be taken in respect to the respective edges, determined as a function of illumination effects in the image; and utilizing the multi-class classifier to automatically label edges in the image, for identification of computer actions to be taken in respect to the edges in the image.