【opencv】统计图像二值化后白色像素点个数

来源：互联网发布：台湾历年人口数据编辑：程序博客网时间：2024/04/30 03:26

应用：图像特征提取

#include "opencv2/highgui/highgui.hpp"  #include "opencv2/imgproc/imgproc.hpp"  #include "opencv2/core/core.hpp"#include <opencv\ml.h>#include <iostream>#include "cv.h"#include "highgui.h"#include <vector>#include <math.h>#include <string.h>#include <fstream>using namespace std;using namespace cv;int bSums(Mat src){int counter = 0;//迭代器访问像素点Mat_<uchar>::iterator it = src.begin<uchar>();Mat_<uchar>::iterator itend = src.end<uchar>();  for (; it!=itend; ++it){if((*it)>0) counter+=1;//二值化后，像素点是0或者255}return counter;}int main(){static string imgPath = "F:/lena.jpg";//读取源图Mat a1 = imread(imgPath);cvtColor(a1,a1,COLOR_BGR2GRAY);//转灰度图threshold(a1,a1,200,255,THRESH_BINARY);//二值化int a = bSums(a1);//调用函数bSumsimshow("A",a1);cout<<"A:"<<a;waitKey();return 0;}

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