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labelling objects.cpp
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labelling objects.cpp
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#include<stdio.h>
#include<iostream>
#include<opencv/cv.hpp>
using namespace cv;
using namespace std;
int main(int argc, char* argv[]) {
char inputimage[] = "C:/Users/sumaira/mscs/Documents/Visual Studio 2015/Projects/COMPUTER VISION USING OPENCV/obtaininghist/obtaininghist/image030.png";
Mat src, dst, srcclone;
src = imread(inputimage, 1);
if (!src.data) {
cout << "no data" << endl;
exit(1);
}
imshow("src", src);
resizeWindow("src", 512, 512);
//prepare the image to find the contour
cvtColor(src, dst, CV_BGR2GRAY);
threshold(dst,dst,130,255,CV_THRESH_BINARY);
//FIND THE CONTOUR and clone the image so the original image is not overwritten
vector<vector<Point>> contour;
srcclone = dst.clone();
findContours(srcclone,contour,CV_RETR_LIST,CV_CHAIN_APPROX_NONE);
//DRAW THE CONTOUR
Mat contourImage(dst.size(), CV_8UC3, Scalar(0, 0, 0));
Scalar color[3];
color[0] = Scalar(255,0,0);
color[1] = Scalar(0,255,0);
color[2] = Scalar(0,0,255);
for (size_t idx = 0; idx < contour.size(); idx++)
drawContours(contourImage,contour,idx,color[idx %3]);
imshow("contour", contourImage);
resizeWindow("contour",512,512);
waitKey(0);
return 0;
}