catree
7 years ago
parent
ba6b9fd261
commit
9fc0cabdf5
7 changed files with 258 additions and 25 deletions
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import java.awt.BorderLayout; |
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import java.awt.Container; |
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import java.awt.Image; |
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import javax.swing.BoxLayout; |
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import javax.swing.ImageIcon; |
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import javax.swing.JFrame; |
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import javax.swing.JLabel; |
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import javax.swing.JPanel; |
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import javax.swing.JSlider; |
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import javax.swing.event.ChangeEvent; |
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import javax.swing.event.ChangeListener; |
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import org.opencv.core.Core; |
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import org.opencv.core.Mat; |
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import org.opencv.highgui.HighGui; |
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import org.opencv.imgcodecs.Imgcodecs; |
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public class AddingImagesTrackbar { |
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private static final int ALPHA_SLIDER_MAX = 100; |
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private int alphaVal = 0; |
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private Mat matImgSrc1; |
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private Mat matImgSrc2; |
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private Mat matImgDst = new Mat(); |
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private JFrame frame; |
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private JLabel imgLabel; |
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public AddingImagesTrackbar(String[] args) { |
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//! [load]
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String imagePath1 = "../data/LinuxLogo.jpg"; |
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String imagePath2 = "../data/WindowsLogo.jpg"; |
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if (args.length > 1) { |
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imagePath1 = args[0]; |
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imagePath2 = args[1]; |
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} |
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matImgSrc1 = Imgcodecs.imread(imagePath1); |
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matImgSrc2 = Imgcodecs.imread(imagePath2); |
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//! [load]
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if (matImgSrc1.empty()) { |
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System.out.println("Empty image: " + imagePath1); |
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System.exit(0); |
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} |
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if (matImgSrc2.empty()) { |
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System.out.println("Empty image: " + imagePath2); |
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System.exit(0); |
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} |
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//! [window]
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// Create and set up the window.
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frame = new JFrame("Linear Blend"); |
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); |
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// Set up the content pane.
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Image img = HighGui.toBufferedImage(matImgSrc2); |
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addComponentsToPane(frame.getContentPane(), img); |
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// Use the content pane's default BorderLayout. No need for
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// setLayout(new BorderLayout());
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// Display the window.
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frame.pack(); |
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frame.setVisible(true); |
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//! [window]
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} |
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private void addComponentsToPane(Container pane, Image img) { |
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if (!(pane.getLayout() instanceof BorderLayout)) { |
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pane.add(new JLabel("Container doesn't use BorderLayout!")); |
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return; |
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} |
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JPanel sliderPanel = new JPanel(); |
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sliderPanel.setLayout(new BoxLayout(sliderPanel, BoxLayout.PAGE_AXIS)); |
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//! [create_trackbar]
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sliderPanel.add(new JLabel(String.format("Alpha x %d", ALPHA_SLIDER_MAX))); |
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JSlider slider = new JSlider(0, ALPHA_SLIDER_MAX, 0); |
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slider.setMajorTickSpacing(20); |
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slider.setMinorTickSpacing(5); |
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slider.setPaintTicks(true); |
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slider.setPaintLabels(true); |
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//! [create_trackbar]
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//! [on_trackbar]
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slider.addChangeListener(new ChangeListener() { |
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@Override |
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public void stateChanged(ChangeEvent e) { |
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JSlider source = (JSlider) e.getSource(); |
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alphaVal = source.getValue(); |
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update(); |
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} |
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}); |
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//! [on_trackbar]
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sliderPanel.add(slider); |
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pane.add(sliderPanel, BorderLayout.PAGE_START); |
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imgLabel = new JLabel(new ImageIcon(img)); |
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pane.add(imgLabel, BorderLayout.CENTER); |
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} |
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private void update() { |
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double alpha = alphaVal / (double) ALPHA_SLIDER_MAX; |
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double beta = 1.0 - alpha; |
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Core.addWeighted(matImgSrc1, alpha, matImgSrc2, beta, 0, matImgDst); |
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Image img = HighGui.toBufferedImage(matImgDst); |
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imgLabel.setIcon(new ImageIcon(img)); |
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frame.repaint(); |
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} |
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public static void main(String[] args) { |
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// Load the native OpenCV library
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System.loadLibrary(Core.NATIVE_LIBRARY_NAME); |
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// Schedule a job for the event dispatch thread:
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// creating and showing this application's GUI.
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javax.swing.SwingUtilities.invokeLater(new Runnable() { |
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@Override |
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public void run() { |
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new AddingImagesTrackbar(args); |
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} |
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}); |
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} |
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} |
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@ -0,0 +1,48 @@ |
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from __future__ import print_function |
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from __future__ import division |
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import cv2 as cv |
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import argparse |
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alpha_slider_max = 100 |
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title_window = 'Linear Blend' |
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## [on_trackbar] |
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def on_trackbar(val): |
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alpha = val / alpha_slider_max |
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beta = ( 1.0 - alpha ) |
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dst = cv.addWeighted(src1, alpha, src2, beta, 0.0) |
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cv.imshow(title_window, dst) |
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## [on_trackbar] |
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parser = argparse.ArgumentParser(description='Code for Adding a Trackbar to our applications tutorial.') |
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parser.add_argument('--input1', help='Path to the first input image.', default='../data/LinuxLogo.jpg') |
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parser.add_argument('--input2', help='Path to the second input image.', default='../data/WindowsLogo.jpg') |
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args = parser.parse_args() |
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## [load] |
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# Read images ( both have to be of the same size and type ) |
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src1 = cv.imread(args.input1) |
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src2 = cv.imread(args.input2) |
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## [load] |
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if src1 is None: |
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print('Could not open or find the image: ', args.input1) |
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exit(0) |
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if src2 is None: |
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print('Could not open or find the image: ', args.input2) |
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exit(0) |
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## [window] |
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cv.namedWindow(title_window) |
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## [window] |
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## [create_trackbar] |
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trackbar_name = 'Alpha x %d' % alpha_slider_max |
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cv.createTrackbar(trackbar_name, title_window , 0, alpha_slider_max, on_trackbar) |
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## [create_trackbar] |
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# Show some stuff |
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on_trackbar(0) |
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# Wait until user press some key |
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cv.waitKey() |
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