我是初學者openCV。我dowloaded opencv2.4.5和visual studio express 2012然後我跟着這個鏈接http://opencv-srf.blogspot.in/2013/05/installing-configuring-opencv-with-vs.html設置一切環境變量等然後我下面鏈接http://opencv-srf.blogspot.in/2013/06/load-display-image.html創建示例應用程序。我包含了正確的#include路徑。但我得到錯誤。錯誤:標識符「img」未定義
#include "stdafx.h"
#include <C:\opencv\build\include\opencv\cv.h>
#include <C:\opencv\build\include\opencv\cxcore.h>
#include <C:\opencv\build\include\opencv\highgui.h>
#include "C:\opencv\build\include\opencv2\highgui\highgui.hpp"
#include <iostream>
using namespace cv;
using namespace std;
int main(int argc, const char** argv)
{
Mat img = imread("MyPic.JPG", CV_LOAD_IMAGE_UNCHANGED); //read the image data in the file "MyPic.JPG" and store it in 'img'
if (img.empty()) //check whether the image is loaded or not
{
cout << "Error : Image cannot be loaded..!!" << endl;
//system("pause"); //wait for a key press
return -1;
}
namedWindow("MyWindow", CV_WINDOW_AUTOSIZE); //create a window with the name "MyWindow"
imshow("MyWindow", img); //display the image which is stored in the 'img' in the "MyWindow" window
waitKey(0); //wait infinite time for a keypress
destroyWindow("MyWindow"); //destroy the window with the name, "MyWindow"
return 0;
}
哪一行導致錯誤? –