Strange image name generated by C ++ and opencv
Below is a very simple example of using openCV to display a 2D matrix. Oddly enough, the title of the image cannot be displayed correctly. Any suggestion please?
#include "stdafx.h"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/core/core.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <string>
#include <iostream>
using namespace cv;
using namespace std;
int main( int argc, const char** argv )
{
Mat M(200, 200, CV_8UC3, Scalar(0, 0, 255));
string Something ("Some text");
namedWindow("Hello", CV_WINDOW_AUTOSIZE);// Create a window for display.
imshow(Something, M);
waitKey(0);
return 0;
}
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1 answer
There is a problem in your code, the string passed to namedWindow is the window id (not exactly the title).
To display an image in a window imshow
, the name of a previously created window is required. And I think you want to use the one you defined in namedWindow
.
The correct code would be something like this:
string Something ("Some text");
namedWindow(Something, CV_WINDOW_AUTOSIZE);// Create a window for display.
imshow(Something, M);
Perhaps this is more than what you like?
The variable Something is the window identifier.
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