in order to get an ideal lane marks' edge, an image preprocessing method based on edge distribution function (edf) was proposed considering the directional characteristics of lane marks.
为了得到较理想的车道标识线的边缘,考虑车道标识线的方向特性,提出一种基于边缘分布函数(edf)的图像预处理方法。
this paper presents a complete gabor filter based fingerprint image preprocessing method according to the characteristic of the fingerprint image.
针对指纹图像的特点,建立了一套指纹图像预处理体系,为指纹特征点的提取和比对奠定了良好的基础。
the image preprocessing method of infrared image face recognition is studied based on the analysis of properties of infrared face image.
在深入分析红外图像人脸识别特点的基础上,研究和设计了红外图像人脸识别的图像预处理方法;