Question

I am running my below code in eclipse, i have include the path and libraries successfuly, but when run the code it shows an error.

 #include <cv.h>
 #include<stdio.h>
 #include <highgui.h>
  //using namespace cv;
 int main()
{     
 Mat image;
 image = imread( argv[1], 1 );

 if( argc != 2 || !image.data )
  {
    printf( "No image data \n" );
    return -1;
  }

 namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
 imshow( "Display Image", image );

 waitKey(0);
   printf("this is open cv programming");

  return 0;
}

Answer 1

Your main() signature is incomplete

try

int main(int argc, char* argv[])

these parameters represent:

argc  // an int indicating the number of arguments passed in to the function

argv[]  // an array of character strings, the actual arguments.

The first argument argv[0] is the program name … so argc is always a minimum of 1.

The second argument, argv[1] will be the first argument your user passes in, bringing argc up to 2. That is what your program is expecting, a single argument from the user, argc == 2.