Capturing Image using Webcam in JavaCV

Camera Capture using JavaCV


The initial set will be same as it is done in this example

http://errorsexception.blogspot.in/2016/01/basic-imagetransformation-using-javacv.html

We can capture image from webcam using this simple example using java cv


The Code is : 

import org.bytedeco.javacpp.Loader;
import org.bytedeco.javacv.*;
import org.bytedeco.javacv.FrameGrabber.Exception;
import org.bytedeco.javacpp.*;
import org.bytedeco.javacpp.opencv_core.CvPoint;
import org.bytedeco.javacpp.opencv_core.CvScalar;
import org.bytedeco.javacpp.opencv_core.CvSeq;
import org.bytedeco.javacpp.opencv_core.IplImage;
import org.bytedeco.javacpp.opencv_highgui.CvCapture;

import static org.bytedeco.javacpp.opencv_core.*;
import static org.bytedeco.javacpp.opencv_imgproc.*;
import static org.bytedeco.javacpp.opencv_calib3d.*;
import static org.bytedeco.javacpp.opencv_objdetect.*;
import static org.bytedeco.javacpp.opencv_highgui.*;
public class CameraCapture1 {

/**
* @param args
* @throws Exception 
* @throws org.bytedeco.javacv.FrameRecorder.Exception 
*/
public static void main(String[] args) throws Exception, org.bytedeco.javacv.FrameRecorder.Exception {
// TODO Auto-generated method stub

OpenCVFrameGrabber grabber = new OpenCVFrameGrabber(0);
        grabber.start();
        IplImage grabbedImage = grabber.grab();
        IplImage imgGray=cvCreateImage(cvGetSize(grabbedImage),IPL_DEPTH_8U,1);
        IplImage imgHsv=cvCreateImage(cvGetSize(grabbedImage),IPL_DEPTH_8U,3);

        CanvasFrame canvasFrame = new CanvasFrame("Cam");
        CanvasFrame canvasFrame1=new CanvasFrame("GrayImage");
        CanvasFrame canvasFrame2=new CanvasFrame("HSV Image");
        canvasFrame.setCanvasSize(grabbedImage.width(), grabbedImage.height());
        canvasFrame1.setCanvasSize(grabbedImage.width(), grabbedImage.height());
        canvasFrame2.setCanvasSize(grabbedImage.width(), grabbedImage.height());

      
        while (canvasFrame.isVisible() && (grabbedImage = grabber.grab()) != null) {
        cvCvtColor(grabbedImage,imgGray,CV_BGR2GRAY);
        cvCvtColor(grabbedImage,imgHsv,CV_BGR2HSV);
       
            canvasFrame.showImage(grabbedImage);
            canvasFrame1.showImage(imgGray);
            canvasFrame2.showImage(imgHsv);
            
           
        }
        
        grabber.stop();
        canvasFrame.dispose();
}


}

and the result is

 

sorry for the resolution it's because of bad light .

thank you 

Ashutosh