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In this paper, a novel approach is proposed to automatically generate both watercolor painting and pencil sketch drawing, or binary image of contour, from realism-style photo by using DBSCAN color clustering based on HSV color space. While the color clusters produced by proposed methods help to create watercolor painting, the noise pixels are useful to generate the pencil sketch drawing. Moreover, noise pixels are reassigned to color clusters by a novel algorithm to refine the contour in thedoi:10.1109/icdmw.2007.17 dblp:conf/icdm/HuangDH07 fatcat:hyqi7543ijcqtn7lekrbo7y3q4