OpenCV_Spot.java
import java.awt.Component;
import java.awt.EventQueue;
import javax.swing.JFrame;
import java.awt.Canvas;
import javax.swing.ImageIcon;
import javax.swing.JColorChooser;
import javax.swing.JPanel;
import javax.swing.JLabel;
import org.opencv.core.Core;
import org.opencv.core.CvType;
import org.opencv.core.Mat;
import org.opencv.core.Point;
import org.opencv.core.Rect;
import org.opencv.core.Scalar;
import org.opencv.core.Size;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
import java.awt.event.MouseMotionAdapter;
import java.awt.event.MouseEvent;
import java.awt.Color;
import java.awt.event.MouseAdapter;
import java.awt.image.BufferedImage;
import javax.swing.JButton;
import javax.swing.border.LineBorder;
import javax.swing.JSlider;
import javax.swing.event.ChangeListener;
import javax.swing.event.ChangeEvent;
public class OpenCV_Spot {
static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME); }
private JFrame frmOpencv;
private Mat sourceMat=Imgcodecs.imread("D:\\projects\\Java\\OpenCV_Samples\\resource\\imgs\\lena.jpg ");
private Color color;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
OpenCV_Spot window = new OpenCV_Spot();
window.frmOpencv.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public OpenCV_Spot() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
final BufferedImage image=matToBufferedImage(sourceMat);
frmOpencv = new JFrame();
frmOpencv.setTitle("opencv Jukoto effect practice");
frmOpencv.getContentPane().setBackground(Color.LIGHT_GRAY);
frmOpencv.setBounds(100, 100, 547, 627);
frmOpencv.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmOpencv.getContentPane().setLayout(null);
final JLabel lblShowXY = new JLabel("");
lblShowXY.setBounds(405, 2, 124, 23);
frmOpencv.getContentPane().add(lblShowXY);
JPanel panel = new JPanel();
final JLabel lblPaintLabel = new JLabel("");
lblPaintLabel.setIcon(new ImageIcon(image));
panel.add(lblPaintLabel);
panel.setBounds(10, 64, 519, 519);
frmOpencv.getContentPane().add(panel);
JLabel lblNewLabel = new JLabel("Jukou intensity");
lblNewLabel.setBounds(10, 20, 58, 15);
frmOpencv.getContentPane().add(lblNewLabel);
final JSlider slider = new JSlider();
slider.setValue(30);
slider.setMinimum(1);
slider.setBounds(78, 10, 200, 25);
frmOpencv.getContentPane().add(slider);
final JLabel Label_scale = new JLabel("30");
Label_scale.setBounds(298, 20, 46, 15);
frmOpencv.getContentPane().add(Label_scale);
slider.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent arg0) {
Label_scale.setText(slider.getValue()+"");
}
});
panel.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent arg0) {
lblShowXY.setText("X:"+arg0.getX()+",Y:"+arg0.getY());
BufferedImage newImage=matToBufferedImage(spot(sourceMat,slider.getValue(),arg0.getX(),arg0.getY()) );
lblPaintLabel.setIcon(new ImageIcon(newImage));
}
});
}
public Mat spot(Mat source,int Scale,int PntX,int PntY){
double scale=0-Scale;
Point pt=new Point(PntX,PntY);
Mat destination=new Mat(source.rows(),source.cols(),source.type());
for (int j=0;j<source.rows();j++){
for(int i=0;i<source.cols();i++){
double[] temp=source.get(j,i);
double dx=((j-pt.x)/pt.x);
double dy=((i-pt.y)/pt.y);
double weight=Math.exp((dx*dx+dy*dy)*scale);
temp[0]=Math.round(temp[0]*weight);
temp[1]=Math.round(temp[1]*weight);
temp[2]=Math.round(temp[2]*weight);
destination.put(j, i, temp);
}
}
return destination;
}
public BufferedImage matToBufferedImage(Mat matrix) {
int cols = matrix.cols();
int rows = matrix.rows();
int elemSize = (int)matrix.elemSize();
byte[] data = new byte[cols * rows * elemSize];
int type;
matrix.get(0, 0, data);
switch (matrix.channels()) {
case 1:
type = BufferedImage.TYPE_BYTE_GRAY;
break;
case 3:
type = BufferedImage.TYPE_3BYTE_BGR;
// bgr to rgb
byte b;
for(int i=0; i<data.length; i=i+3) {
b = data[i];
data[i] = data[i+2];
data[i+2] = b;
}
break;
default:
return null;
}
BufferedImage image2 = new BufferedImage(cols, rows, type);
image2.getRaster().setDataElements(0, 0, cols, rows, data);
return image2;
}
public Color getColor() {
return color;
}
public void setColor(Color color) {
this.color = color;
}
}
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