一种基于样本传播的图像风化方法  

An Image Weathering Method Based on Exemplar Propagation

作　　者：王玉铭 潘斌[1] 郭小明[1] 殷立 张曼琳 贾方利 Wang Yuming;Pan Bin;Guo Xiaoming;Yin Li;Zhang Manlin;Jia Fangli(College of Sciences,Liaoning Petrochemical University,Fushun Liaoning 113001,China;School of Computer and Communication Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China)

机构地区：[1]辽宁石油化工大学理学院,辽宁抚顺113001 [2]辽宁石油化工大学计算机与通信工程学院,辽宁抚顺113001

出　　处：《辽宁石油化工大学学报》2021年第1期80-85,共6页Journal of Liaoning Petrochemical University

基　　金：国家自然科学基金项目(61602228、61572290);辽宁省“兴辽英才计划”青年拔尖人才项目(XLYC1807266);辽宁省自然科学基金项目(2015020041)。

摘　　要：对图像中的物体进行风化处理是一种提高模拟场景真实感的有效方法。利用一种图像处理方法,实现了图像中物体表面的精细风化效果。首先,利用径向基函数(RBF)方法计算风化程度。即使物体表面的颜色变化很大,该算法也可以较精确地计算风化程度。然后,使用图像分割算法来提取风化程度最深的区域作为"风化样本"。最后,利用patchmatch图像修补算法对"风化样本"进行补全,以此在图像上的待风化区域进行"风化样本"的无缝传播。结果表明,此方法可以产生各种类型的风化效应。利用样本传播的方法可以更好地模拟风化图像。In order to improve the realism of the simulated scene,weathering the objects of the image is an effective method.Using an image processing method to achieve the fine weathering effect of the objects surface in the image.First of all,use the radial basis function(RBF)method to calculate the weathering degree image.Even if the color of the surface of the object changed greatly,the algorithm could calculate the degree of weathering more accurately.Then,use the image segmentation algorithm to extract the most weathered region as the"weathering exemplar".Finally,the patchmatch image repair algorithm was used to complete the"weathering exemplar",so that the"weathering exemplar"could be propagated seamlessly in the weathering area of the image.The results show that the proposed method can generate various types of weathering effects.Using the method of exemplar propagation can better simulate the weathering image.

关 键 词：图像风化 径向基函数 图像分割 图像修补 样本传播 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]