Question

I’m new to OpenCV 2.4.2, and write a simple program to display an image.

The image is:

And the code is:

include "highgui.h"

int main(int argc, char** argv) {
    IplImage* img = cvLoadImage("logo.png");
    cvNamedWindow( "Example1", CV_WINDOW_AUTOSIZE);
    cvShowImage("Example1", img);
    cvWaitKey(0);
    cvReleaseImage(&img);
    cvDestroyWindow("Example1");
    return 0;
}

And the result:

You can see there is a big grey border on the right. Why there it is, and how to fix it?

Answer 1

That is the smallest window possible since window should occupy 3 buttons at the top. It will be OK if you enlarge the image.