五台山壁画人物线描图生成算法  

LINE DRAWING OF WUTAI MOUTAIN MURAL FIGURES GENERATING ALGORITHM

作　　者：焦莉娟[1] 王文剑[2] 李朝霞[1] Jiao Lijuan;Wang Wenjian;Li Zhaoxia(Computer Department,Xinzhou Teachers University,Xinzhou 034000,Shanxi,China;School of Computer and Information Technology,Shanxi University,Taiyuan 030006,Shanxi,China)

机构地区：[1]忻州师范学院计算机系,山西忻州034000 [2]山西大学计算机与信息技术学院,山西太原030006

出　　处：《计算机应用与软件》2024年第10期242-246,共5页Computer Applications and Software

基　　金：国家自然科学基金项目(62372397);山西省基础研究计划项目(202303021221175)。

摘　　要：五台山壁画图像因褪化而导致颜色不均匀、部分边缘轮廓像素灰度缺失,用传统的梯度法生成的线描图存在噪点多且线条不连续的问题。提出一种基于色调补偿及双卷积技术的壁画人物线描图生成算法。在计算梯度幅值时引入色调梯度进行有效的色调补偿,同时通过两种针对离散噪点的卷积模板实现去麻点功能。对五台山壁画人物图像的线描图生成实验的结果表明,该方法在去噪的基础上有效改善了轮廓线不连续的问题。The image of Wutai Mountain murals is faded,resulting in uneven hue and grayscale missing of some edges.The line drawing generated by traditional gradient method has many noise points and discontinuous lines.A line drawing of mural figures generating algorithm based on tone compensation and double convolution technology is proposed.The hue gradient was introduced to calculate the gradient amplitude for effective hue compensation.Two kinds of convolution templates for discrete noise were used to achieve the function of denoising.Experimental results on Wutai Mountain murals figures line drawing illustrate that the proposed algorithm can improve the discontinuity of the contour line on the basis of removing noise effectively.

关 键 词：五台山壁画 壁画线描图 轮廓提取 微分算子 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]