backupcode.txt

// distance Measurement.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "cv.h"
#include "highgui.h"
#include "opencv2\imgproc\imgproc_c.h"
#include<fstream>

int _tmain(int argc, _TCHAR* argv[])
{
	using namespace std;
	using namespace cv;

	Mat img, img_gray, channel[3];
	VideoCapture cam(1);
	
	FILE *data;
	data = fopen("data320.csv","a");
	
	cam.set(CV_CAP_PROP_FRAME_WIDTH, 1280);
	cam.set(CV_CAP_PROP_FRAME_HEIGHT, 720);
	cam.set(CV_CAP_PROP_CONVERT_RGB, 1);
	
	while(waitKey(10) != 'a')
	{
		cam >> img;
		cvtColor(img, img_gray, COLOR_RGB2GRAY);
		split(img, channel);
		subtract(channel[2], img_gray, img_gray);
		//convertScaleAbs(img, img);
		threshold(img_gray, img_gray, 90, 255, THRESH_BINARY);

		erode(img_gray, img_gray, Mat(), Point(-1,-1), 4);
		dilate(img_gray, img_gray, Mat(), Point(-1,-1), 4);

		vector<vector<Size>> contors;
		vector<Vec4i> heirarcy;
		findContours(img_gray, contors, heirarcy, CV_RETR_EXTERNAL, CV_CHAIN_APPROX_SIMPLE, Point(0,0));

		vector<Rect> boundRect(contors.size());
		vector<vector<Point>> contor_poly(contors.size());
	
		for(int i =0; i< contors.size(); i++)
		{
			approxPolyDP(Mat(contors[i]), contor_poly[i], 3, true);
			boundRect[i] = boundingRect(Mat(contor_poly[i]));
		}
		int max_index = 0,max = 0;
		for(int i =0; i< contors.size(); i++)
		{
			int a = boundRect[i].area(); 
			if( a > max)
			{ 
				max = a;
				max_index = i;
			}
		}

		/*for(int i=0; i< contors.size(); i++)
		{
			if(boundRect[i].area() > 200)
				rectangle(img, boundRect[i].tl(), boundRect[i].br(), Scalar(0,255,0), 2, 8, 0); 
		}*/
		if(boundRect.size() > 0)
		{	
			rectangle(img, boundRect[max_index].tl(), boundRect[max_index].br(), Scalar(0,255,0), 2, 8, 0);
			fprintf(data,"%d , %d , %d\n", boundRect[max_index].width, boundRect[max_index].height, boundRect[max_index].area());
		}
		namedWindow("Frame", WINDOW_AUTOSIZE);
		imshow("Frame", img);
	}
	

	
	fflush(data);
	fclose(data);
	cam.release();
	return 0;
}