A method of separating an image is provided. The method comprises: running a bitmap image of at least one polygon comprising a plurality of pixels through a distance filter; skeletonizing the polygon formed after filtering by modulo arithmetic; logically ANDing the skeletonized image with two masks separately consisting of horizontal and vertical lines of 1 bit thickness at a particular frequency to form an image of the horizontal edges and an image of the vertical edges; and filtering the resulting image through a particle filter eliminating particles of size greater than 2.