OpenCV and Visual Studio 2010: Infamous namespace error.
I have tried and compile the following code with out any success, I am using Visual Studio 2010.
Code:
#include <cxcore.h>
#include <highgui.h>
#include <cv.hpp>
#include <iostream>
using namespace cv;
using namespace std;
int main( int argc, char** argv )
{
if( argc != 2)
{
cout <<" Usage: display_image ImageToLoadAndDisplay" << endl;
return -1;
}
Mat image;
image = imread(argv[1], CV_LOAD_IMAGE_COLOR); // Read the file
if(! image.data ) // Check for invalid input
{
cout << "Could not open or find the image" << std::endl ;
return -1;
}
namedWindow( "Display window", CV_WINDOW_AUTOSIZE );// Create a window for display.
imshow( "Display window", image ); // Show our image inside it.
waitKey(0); // Wait for a keystroke in the window
return 0;
}
I get the following errors when I try to compile the code.
\documents\visual studio 2010\projects\test_open_cv.cpp(6): error C2871: 'cv' : a namespace with this name does not exist
\documents\visual studio 2010\projects\test_open_cv.cpp(17): error C2065: 'Mat' : undeclared identifier
\documents\visual studio 2010\projects\test_open_cv.cpp(17): error C2146: syntax error : missing ';' before identifier 'image'
\documents\visual studio 2010\projects\test_open_cv.cpp(17): error C2065: 'image' : undeclared identifier
\documents\visual studio 2010\projects\test_open_cv.cpp(18): error C2065: 'image' : undeclared identifier
\documents\visual studio 2010\projects\test_open_cv.cpp(18): error C3861: 'imread': identifier not found
\documents\visual studio 2010\projects\test_open_cv.cpp(20): error C2065: 'image' : undeclared identifier
\documents\visual studio 2010\projects\test_open_cv.cpp(20): error C2228: left of '.data' must have class/struct/union
1> type is ''unknown-type''
\documents\visual studio 2010\projects\test_open_cv.cpp(26): error C3861: 'namedWindow': identifier not found
\documents\visual studio 2010\projects\test_open_cv.cpp(27): error C2065: 'image' : undeclared identifier
\documents\visual studio 2010\projects\test_open_cv.cpp(27): error C3861: 'imshow': identifier not found
\documents\visual studio 2010\projects\test_open_cv.cpp(29): error C3861: 'waitKey': identifier not found
I don't know why I'm getting this. Why am I getting errors for stuff already included in header files. Why am I getting the namespace not defined even though header for it is included for CV.
Thanks,
James