Automatic Image—Based Pencil Sketch Rendering  

作　　者：王进 鲍虎军 周伟华 彭群生 徐迎庆 

机构地区：[1]State Key Laboratory of CAD& CG, Zhejiang University, Hangzhou 310027, P.R. China [2]Microsoft China Research, Beijing 100080, P.R. China

出　　处：《Journal of Computer Science & Technology》2002年第3期347-355,共9页计算机科学技术学报（英文版）

基　　金：国家自然科学基金，Innovative Research Groups

摘　　要：This paper presents an automatic image-based approach for converting greyscale images to pencil sketches, in which strokes follow the image features. The algorithm first extracts a dense direction field automatically using Logical/Linear operators which embody the drawing mechanism. Next, a reconstruction approach based on a sampling-and-interpolation scheme is introduced to generate stroke paths from the direction field. Finally, pencil strokes are rendered along the specified paths with consideration of image tone and artificial illumination.As an important application, the technique is applied to render portraits from images with little user interaction. The experimental results demonstrate that the approach can automatically achieve compelling pencil sketches from reference images.

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]