指针式仪表图像高斯同态滤波增强算法研究  

Study of Gaussian Homomorphic Filtering Enhancement Algorithm for the Pointer Instrument Image

作　　者：郭清宇[1] 彭芳芳[1] 

机构地区：[1]中原工学院,郑州450007

出　　处：《中原工学院学报》2013年第5期1-4,14,共5页Journal of Zhongyuan University of Technology

摘　　要：分析了指针式仪表图像的特征,探讨了指针式仪表图像高斯同态滤波增强算法.介绍了同态滤波的基本原理,利用高斯同态滤波算法对指针式仪表图像进行预处理,以增强图像的对比度,并提出了滤波器参数的选取方法.最后对增强后的图像进行最大类间方差二值化,为仪表图像的后续处理和后续识别工作奠定了基础.On the basis of analyzing the characteristic of the pointer instrument image, Gaussian homomorphic filtering method is used for image enhancement. The basic principle of homomorphic filtering is introduced, using Gaussian homomorphic filter algorithm for the pointer instrument image preprocessing. Filter parameter selection method is proposed to enhance the contrast of image, then the enhanced image with OTSU binaryzation is dealt with, for instrument image processing and identification of subsequent work lay a good foundation.

关 键 词：指针式仪表 图像预处理 图像增强 高斯同态滤波 最大类间方差二值化 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]