OpenCV_ColorChange.java
import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.photo.Photo;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.awt.image.BufferedImage;
public class OpenCV_ColorChange {
static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME); }
private JFrame frmjavaSwing;
/**
* Launch the application.
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
OpenCV_ColorChange window = new OpenCV_ColorChange();
window.frmjavaSwing.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the application.
*/
public OpenCV_ColorChange() {
initialize();
}
/**
* Initialize the contents of the frame.
*/
private void initialize() {
final Mat source = Imgcodecs.imread("D:\\projects\\Java\\OpenCV_Samples\\resource\\imgs\\lena.jpg ");
BufferedImage image=matToBufferedImage(source);
frmjavaSwing = new JFrame();
frmjavaSwing.setTitle("opencv colorChange");
frmjavaSwing.setBounds(100, 100, 520, 550);
frmjavaSwing.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frmjavaSwing.getContentPane().setLayout(null);
final JLabel showRedValue = new JLabel("1");
showRedValue.setBounds(82, 43, 46, 15);
frmjavaSwing.getContentPane().add(showRedValue);
final JLabel showGreenValue = new JLabel("1");
showGreenValue.setBounds(249, 43, 46, 15);
frmjavaSwing.getContentPane().add(showGreenValue);
final JLabel lblNewLabel = new JLabel("");
lblNewLabel.setBounds(10, 68, 438, 438);
lblNewLabel.setIcon(new ImageIcon(image));
frmjavaSwing.getContentPane().add(lblNewLabel);
final JSlider slider_Green = new JSlider();
slider_Green.setMinimum(1);
slider_Green.setValue(1);
slider_Green.setMaximum(500);
slider_Green.setBounds(220, 10, 75, 25);
frmjavaSwing.getContentPane().add(slider_Green);
final JSlider slider_Red = new JSlider();
slider_Red.setMinimum(1);
slider_Red.setMaximum(500);
slider_Red.setValue(1);
slider_Red.setBounds(57, 10, 86, 25);
frmjavaSwing.getContentPane().add(slider_Red);
JLabel lblAlpha = new JLabel("red_mul");
lblAlpha.setBounds(10, 10, 56, 15);
frmjavaSwing.getContentPane().add(lblAlpha);
JLabel lblBeta = new JLabel("green_mul");
lblBeta.setBounds(155, 10, 67, 15);
frmjavaSwing.getContentPane().add(lblBeta);
JLabel lblNewLabel_1 = new JLabel("blue_mul");
lblNewLabel_1.setBounds(315, 10, 85, 15);
frmjavaSwing.getContentPane().add(lblNewLabel_1);
final JSlider slider_Blue = new JSlider();
slider_Blue.setValue(1);
slider_Blue.setMinimum(1);
slider_Blue.setMaximum(500);
slider_Blue.setBounds(373, 8, 75, 25);
frmjavaSwing.getContentPane().add(slider_Blue);
final JLabel showBlueValue = new JLabel("1");
showBlueValue.setBounds(416, 43, 46, 15);
frmjavaSwing.getContentPane().add(showBlueValue);
slider_Blue.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent arg0) {
showBlueValue.setText(slider_Blue.getValue()+"");
BufferedImage newImage=matToBufferedImage(colorChange(slider_Red.getValue(),slider_Green.getValue(),slider_Blue.getValue()));
lblNewLabel.setIcon(new ImageIcon(newImage));
}
});
slider_Red.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent arg0) {
//System.out.println(slider_alpha.getValue());
showRedValue.setText(slider_Red.getValue()+"");
BufferedImage newImage=matToBufferedImage(colorChange(slider_Red.getValue(),slider_Green.getValue(),slider_Blue.getValue()));
lblNewLabel.setIcon(new ImageIcon(newImage));
}
});
slider_Green.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent arg0) {
showGreenValue.setText(slider_Green.getValue()+"");
BufferedImage newImage=matToBufferedImage(colorChange(slider_Red.getValue(),slider_Green.getValue(),slider_Blue.getValue()));
lblNewLabel.setIcon(new ImageIcon(newImage));
}
});
}
public Mat colorChange(int Red,int Green,int Blue){
Mat src = Imgcodecs.imread("C://opencv3.1//samples//lena.jpg ",Imgcodecs.CV_LOAD_IMAGE_COLOR);
Mat destination=new Mat();
Mat src_mask = new Mat(src.rows(), src.cols(), src.depth());
for (int i=0;i<src_mask.rows();i++){
for (int j=0;j<src_mask.cols();j++){
double[] data=new double[3];
data=src_mask.get(i, j);
data[0]= 255;
src_mask.put(i, j, data);
}
}
Photo.colorChange(src,src_mask, destination,Red,Green,Blue);
// Photo.colorChange(src,src_mask, destination,300,100,100);
Imgcodecs.imwrite("C://opencv3.1//samples//colorChange_1.jpg ",destination);
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;
}
}
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