下面的代碼是用於檢測Hough變換的行,但是這段代碼無法正常工作。它說「無法打開pic1.png」。請檢查這段代碼,告訴我什麼是此代碼錯誤,請幫助我。我正在使用openCV 2.3庫和visual studio 2010.謝謝。請幫我找到這個錯誤
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include"cv.h"
#include"cxcore.h"
#include"stdafx.h"
#include <iostream>
using namespace cv;
using namespace std;
void help()
{
cout << "\nThis program demonstrates line finding with the Hough transform.\n"
"Usage:\n"
"./houghlines <image_name>, Default is pic1.png\n" << endl;
}
int main(int argc, char** argv)
{
const char* filename = argc >= 2 ? argv[1] : "pic1.png";
Mat src = imread(filename, 0);
if(src.empty())
{
help();
cout << "can not open " << filename << endl;
return -1;
}
Mat dst, cdst;
Canny(src, dst, 50, 200, 3);
cvtColor(dst, cdst, CV_GRAY2BGR);
#if 0
vector<Vec2f> lines;
HoughLines(dst, lines, 1, CV_PI/180, 100, 0, 0);
for(size_t i = 0; i < lines.size(); i++)
{
float rho = lines[i][0], theta = lines[i][1];
Point pt1, pt2;
double a = cos(theta), b = sin(theta);
double x0 = a*rho, y0 = b*rho;
pt1.x = cvRound(x0 + 1000*(-b));
pt1.y = cvRound(y0 + 1000*(a));
pt2.x = cvRound(x0 - 1000*(-b));
pt2.y = cvRound(y0 - 1000*(a));
line(cdst, pt1, pt2, Scalar(0,0,255), 3, CV_AA);
}
#else
vector<Vec4i> lines;
HoughLinesP(dst, lines, 1, CV_PI/180, 50, 50, 10);
for(size_t i = 0; i < lines.size(); i++)
{
Vec4i l = lines[i];
line(cdst, Point(l[0], l[1]), Point(l[2], l[3]), Scalar(0,0,255), 3, CV_AA);
}
#endif
imshow("source", src);
imshow("detected lines", cdst);
waitKey();
return 0;
}
好嗎?你在同一個目錄下有一個'pic1.png'文件嗎? – Mat
@Mat - 可能是程序運行的地方和文件所在的地方的誤區 –
不理解這裏的倒票。這是一個直截了當的答案。請提出降低投票的原因,以便改善問題。 – daramarak