基于RGB的光弹性贴片测量条纹图像处理  

Color Image Procesing of Photoelastic Coating Fringe Pattern Based on RGB Feature Space

作　　者：黎小毛[1,2] 朱宝良[2] 钱海[2] 胡祥超[2] 

机构地区：[1]中国科学技术大学精密机械与仪器系,安徽合肥230000 [2]西北核技术研究所,陕西西安710024

出　　处：《微电子学与计算机》2014年第10期60-63,68,共5页Microelectronics & Computer

摘　　要：采用改进的矢量中值滤波方法,对彩色图像噪声像素降噪的同时,保持非噪声像素的信息不遭破坏.通过分析条纹图像的颜色特征,选取R-G特征算子进行等差线的有效提取,并进行二值化分割.采用彩色阈值消色的方法,去除等倾线图像中的彩色条纹,从而获得单纯的黑白等倾线.通过图像处理实验表明,在彩色空间中对光弹性条纹图像处理,相对于灰度直接变换后处理,图像降噪和条纹提取效果更好.In order to solve the proplem of low image contrast and high diffculty of extracting independently for fringe image in photoelstic coatings measurement ,an efficient approach is proposed to eliminate image noise based on RGB feature space before extracting fringe isochromatic and isoclinic ,in which a modified vector median filter is given to filter color image noise without destroying undefiled pixel information .Through analyzing the color characteristics of fringe image .the R-G feature operator is adopted to extract fringe isochromatic which is transformed to binary image .Achromatic threshold is adopted to obtain the pure isoclinic in binary image .The results show that color image processing of photoelastic coating fringe pattern based on RGB feature space is more efficient than gray scale image processing for noise reduction and fringe image extraction .

关 键 词：RGB空间 光弹贴片 彩色条纹 图像增强 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]