OpenCV使用级联分类器实现猫脸检测
一、概述
ps:步骤同上一篇https://www.cnblogs.com/tony-yang-flutter/p/16121237.html
二、代码示例
String catFile = "/usr/local/share/opencv4/haarcascades/haarcascade_frontalcatface.xml"; CascadeClassifier cat_face; if(!cat_face.load(catFile)){ qDebug()<<"猫脸特征数据加载失败"; return; } Mat src = imread(filePath); if(src.empty()){ qDebug()<<"输入图片为空"; return; } Mat gray; vector<Rect> faces; cvtColor(src,gray,COLOR_BGR2GRAY); equalizeHist(gray,gray); cat_face.detectMultiScale(gray,faces,1.1,3,0,Size(100,100)); for(size_t i=0;i<faces.size();i++){ rectangle(src,faces[i],Scalar(0,0,255),3,LINE_8); } imshow("src",src);
三、演示图片