opencv-ubuntu-test.cpp

//g++ ejemplo1.cpp -o programa `pkg-config --cflags --libs opencv4`

#include<opencv2/core/core.hpp>
#include<opencv2/ml/ml.hpp>
#include<opencv2/imgproc/imgproc.hpp>
#include<opencv2/highgui/highgui.hpp>
#include<opencv2/video/background_segm.hpp>
#include<opencv2/videoio.hpp>
#include<opencv2/imgcodecs.hpp>

using namespace cv;

cv::VideoCapture camara(0);

int main(){
 Mat imagen;
 Mat imagenChica; 

 for(;;){
 camara >> imagen;
 resize(imagen,imagenChica,Size(250,250),0,0,INTER_NEAREST);
 imshow("camara", imagenChica);
 if(waitKey(30) == 's') break;

 

 }

 return 0;

}