一种改进的二维彩色铅笔画自动绘制算法  

AN IMPROVED 2D AUTO-RENDERING ALGORITHM FOR COLOURED PENCIL DRAWING

作　　者：谢党恩[1] 张志立[1] 徐丹[2] 

机构地区：[1]许昌学院网络管理中心,河南许昌461000 [2]云南大学信息学院计算机科学与工程系,云南昆明650091

出　　处：《计算机应用与软件》2013年第8期28-31,46,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(60663010);河南省教育厅自然科学基金项目(2009A520024);许昌市科技局项目(1103018;1101031)

摘　　要：针对传统彩色铅笔画绘制技术中存在的色彩失真及自动化程度较低等问题,提出一种改进的二维彩色铅笔画自动绘制算法。该算法在生成白噪声图像时,用原始图像的灰度值来替代单一的黑白像素点,更好地保留原始图像的纹理信息,有效地抑制了颜色失真现象。其次,提出一种基于像素明暗度的比划方向确定方法,确保了铅笔笔画的自然流畅,也使得整个算法能够自动完成。Traditional rendering algorithm for coloured pencil drawing has the problems such as colour distortion and low-level automation. In light of this, we put forward an improved 2D auto-rendering algorithm for c01oured pencil drawing. When generating white noise image, the algorithm uses the gray scale value to replace the single black and white pixels and preserves the texture information of original image better, which effectively restrains colour distortion phenomenon. Besides, we present a new determination approach for stroke direction which is based on the intensity of the pixels, this ensures the natural and smooth of pencil strokes, and makes the entire algorithm to be executed automatically.

关 键 词：彩色铅笔画 LIC KIRSCH算子 HIS色彩空间 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]