opencv的掩膜案例

cv::inRange(src,lowerb,upperb,dst)

cv::bitwise_and(src1,src2,dst,mask)? ? dst = src1 & src2

mask:为掩膜

与运算：和1与，数据不变，和0与，结果为0（RGB中黑色=0；）

?

?

#include <opencv2/opencv.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int main()
{
Mat src = imread("E:/LYPOpenCV3/JZG/ZGimg/person.jpg");
if (src.empty()){
printf("could not load image...n");
return -1;
}
namedWindow("input image",CV_WINDOW_AUTOSIZE);
//imshow("input image",src);

Mat hsvimg;
cvtColor(src,hsvimg,COLOR_BGR2HSV);
//imshow("hsv",hsvimg);

Mat maskimg,maskimg_not,people;
inRange(hsvimg,Scalar(35,43,46),Scalar(77,255,255),maskimg);
imshow("mask",maskimg);

bitwise_not(maskimg,maskimg_not);
imshow("mask_not",maskimg_not);

bitwise_and(src,src,people,maskimg_not);
imshow("people",people);

waitKey(0); return 0;}