Which OpenCV's function support the analog camera for live streaming?
Please give me the answer.
I tried CvCapture and VideoCapture functions of OpenCV. It works for USB camera but did not work for Analog camera.
I tried VideoInput function.It works well with analog camera but i want opencv inbuilt function. So please help me. Thanks for your time.
This is the code for cvcapture function which I have used.
#include "stdafx.h"
#include "cv.h"
#include "cxcore.h"
#include "highgui.h"
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include "videoInput.h"
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;
using namespace std;
char key;
int main()
{
cvNamedWindow("Camera_Output", 1); //Create window
CvCapture* capture = cvCaptureFromCAM(CV_CAP_ANY); //Capture using any camera connected to your system
while(1){ //Create infinte loop for live streaming
IplImage* frame = cvQueryFrame(capture); //Create image frames from capture
cvShowImage("Camera_Output", frame); //Show image frames on created window
key = cvWaitKey(10); //Capture Keyboard stroke
if (char(key) == 27){
break; //If you hit ESC key loop will break.
}
}
cvReleaseCapture(&capture); //Release capture.
cvDestroyWindow("Camera_Output"); //Destroy Window
return 0;
}
end of code
Next code is using VideoInput function.
The code is
#include "stdafx.h"
#include "cv.h"
#include "cxcore.h"
#include "highgui.h"
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include "videoInput.h"
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;
using namespace std;
int main(int, char**)
{
videoInput VI;
int numDevices = VI.listDevices();
//int device1= 0;
VI.setup(0);
unsigned char* yourBuffer = new unsigned char[VI.getSize(0)];
IplImage* colourImage = cvCreateImage(cvSize(320,240),8,3);
while(1)
{
VI.grabFrame(0, yourBuffer);
colourImage->imageData = (char*)yourBuffer;
cvConvertImage(colourImage, colourImage, 3);
cvShowImage("test",colourImage);
if( cvWaitKey(10) == 27)
break;
}
return 0;
}
end of code
and last code is using videocapture function
the code is
#include "stdafx.h"
#include "cv.h"
#include "cxcore.h"
#include "highgui.h"
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <iostream>
#include "videoInput.h"
#include <opencv2/imgproc/imgproc.hpp>
using namespace cv;
using namespace std;
int main() {
VideoCapture stream1(-1); //0 is the id of video device.0 if you have only one camera.
if (!stream1.isOpened()) { //check if video device has been initialised
cout << "cannot open camera";
return 0;
}
//unconditional loop
while (true) {
Mat cameraFrame;
stream1.read(cameraFrame);
imshow("cam", cameraFrame);
if (waitKey(30) >= 0)
break;
}
return 0;
}
End of code
Please help me.
