基于非真实感绘制的抽象艺术效果实现  

Realization of abstract effects based on non-photorealistic rendering

作　　者：陈乔[1] 钱文华[1] 徐丹[1] 普园媛[1] 

机构地区：[1]云南大学信息学院,昆明650091

出　　处：《计算机应用》2010年第12期189-191,共3页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60663010);国家级大学生创新性实验计划项目(91067309);云南省自然科学基金资助项目(07Y40873)

摘　　要：提出一个基于非真实感绘制(NPR)技术的抽象系统模型,将输入的2D图像转换为具有抽象效果的艺术图像。算法首先基于输入图像的亮度、色彩等特征信息,通过色彩扩散、量化、加入边缘信息等图像的重要特征来获得具有抽象艺术效果的图像。系统设置了模糊半径和平滑系数进度条对扩散过程进行控制。其次,通过交互选取,将抽象结果集中在用户所关注的区域,忽略其他不重要的区域。算法可扩展到实时视频领域。An effective method of non-photorealistic rendering for computer generated images with abstract artistic appearances from 2D images was provided.The methods proposed in this paper are inspired by modifying the contrast of visually important features,like luminance and color opponency.This paper mainly proposed the method for generating the abstract appearances based on reducing contrast in low contrast regions,and artificially increasing contrast in higher contrast regions with gradient edges.With good luminance coherence,abstracted images can optionally be stylized using soft color quantization to create cartoon-like effects.Furthermore,the important information in the images of abstraction could be focused with the attention of the users.Experimental results show that the proposed methods are effective and simple.

关 键 词：非真实感绘制 扩散 量化 抽象 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]