opencv统计二值图黑白像素个数

#include "iostream"
#include "queue"
#include "Windows.h"

#include <opencv2/ml/ml.hpp>
#include "opencv2/opencv.hpp"
#include "Windows.h"
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/objdetect/objdetect.hpp"
#include "opencv2/features2d/features2d.hpp"
#include "opencv2/calib3d/calib3d.hpp"
#include "opencv2/ml.hpp"
#include "opencv/cv.h"
#include "opencv/ml.h"
#include "opencv/highgui.h"
#include "opencv/cvaux.h"
#include "opencv/cvwimage.h"
#include "opencv/cxcore.h"
#include "opencv/cxmisc.h"
#include "opencv2/cvconfig.h"
#define MAX 30

using namespace cv;
using namespace std;
int color[10000];

int main(int argc, char *argv[]) {    cv::Mat frame;    cv::Mat back;    cv::Mat fore;    //cv::VideoCapture cap("C:\\C_C++ EX8 code\\Video\\MyVideo.wmv");    cv::VideoCapture cap(0);    cv::Ptr<BackgroundSubtractorMOG2> bg = createBackgroundSubtractorMOG2();

    bg->setNMixtures(3);    //bg.bShadowDetection = false;    std::vector<std::vector<cv::Point> > contours;

    cv::namedWindow("Frame");    cv::namedWindow("Background");

    while(1)     {        cap >> frame;        //bg.operator()(frame, fore);        bg->apply(frame, fore,0.01);                cv::erode(fore, fore, cv::Mat());        cv::dilate(fore, fore, cv::Mat());        bg->getBackgroundImage(back);        //cv::findContours(fore, contours, CV_RETR_EXTERNAL,CV_CHAIN_APPROX_NONE);        //cv::drawContours(frame, contours, -1, cv::Scalar(0, 0, 255), 2);        threshold(fore, fore, 20, 250, CV_THRESH_BINARY_INV);        //---------------------------------------------------------------        int nRow = fore.rows;        int nCol = fore.cols;        //imshow("img", binaryimg);        memset(color, 0, sizeof(color));        for (int i = 0; i < nRow; i++)        {            uchar *data = fore.ptr<uchar>(i);            for (int j = 0; j < nCol; j++)            {                if (*data == 0)                    color[j]++;                *data++;            }        }

        int high = 300;        Mat histimg(high, nCol, CV_8UC3);        for (int j = 0; j < nCol; j += 2)        {            line(histimg, Point(j, high - color[j]), Point(j, high), Scalar(0, 0, 250), 1);        }        imshow("Hist", histimg);        //---------------------------------------------------------------                    //---------------------------------------------------------------        cv::imshow("Foreground", fore);        cv::imshow("Frame", frame);        cv::imshow("Background", back);        if (cv::waitKey(40) >= 0)            break;    }    return 0;}