8 Replies Latest reply on Mar 23, 2015 4:30 AM by mhahn

    intel galileo gen 2 iot displaying a picture using imshow() namedWindow()


      i am using a very basic code on the iot to capture an image from camera and  view it ,but i get this error :-


      Gtk-WARNING **: cannot open display:


      This is my code :-



      #include <opencv2/opencv.hpp>

      #include <math.h>

      using namespace cv;

      void sobelFilter(Mat , Mat , int , int );

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




      VideoCapture cap(0); //intialize camera







      Mat image;


      //cap.release(); //turn the camera off

      namedWindow( "webcam image", CV_WINDOW_AUTOSIZE );

      imshow("webcam image", image);

      imwrite("webcam_image.jpg", image);

      if(waitKey(30) >= 0) break;




      return 0;