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