feat: 切换后端至PaddleOCR-NCNN，切换工程为CMake
1.项目后端整体迁移至PaddleOCR-NCNN算法，已通过基本的兼容性测试 2.工程改为使用CMake组织，后续为了更好地兼容第三方库，不再提供QMake工程 3.重整权利声明文件，重整代码工程，确保最小化侵权风险 Log: 切换后端至PaddleOCR-NCNN，切换工程为CMake Change-Id: I4d5d2c5d37505a4a24b389b1a4c5d12f17bfa38c
This commit is contained in:
wangzhengyang
@ -0,0 +1,179 @@
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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 java.util.ArrayList;
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import java.util.List;
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import java.util.Random;
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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.CvType;
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import org.opencv.core.Mat;
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import org.opencv.core.MatOfPoint;
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import org.opencv.core.MatOfPoint2f;
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import org.opencv.core.Point;
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import org.opencv.core.Rect;
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import org.opencv.core.Scalar;
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import org.opencv.core.Size;
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import org.opencv.highgui.HighGui;
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import org.opencv.imgcodecs.Imgcodecs;
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import org.opencv.imgproc.Imgproc;
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class GeneralContours1 {
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private Mat srcGray = new Mat();
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private JFrame frame;
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private JLabel imgSrcLabel;
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private JLabel imgContoursLabel;
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private static final int MAX_THRESHOLD = 255;
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private int threshold = 100;
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private Random rng = new Random(12345);
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public GeneralContours1(String[] args) {
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//! [setup]
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/// Load source image
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String filename = args.length > 0 ? args[0] : "../data/stuff.jpg";
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Mat src = Imgcodecs.imread(filename);
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if (src.empty()) {
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System.err.println("Cannot read image: " + filename);
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System.exit(0);
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}
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/// Convert image to gray and blur it
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Imgproc.cvtColor(src, srcGray, Imgproc.COLOR_BGR2GRAY);
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Imgproc.blur(srcGray, srcGray, new Size(3, 3));
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//! [setup]
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//! [createWindow]
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// Create and set up the window.
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frame = new JFrame("Creating Bounding boxes and circles for contours demo");
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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(src);
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addComponentsToPane(frame.getContentPane(), img);
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//! [createWindow]
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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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update();
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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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//! [trackbar]
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sliderPanel.add(new JLabel("Canny threshold: "));
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JSlider slider = new JSlider(0, MAX_THRESHOLD, threshold);
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slider.setMajorTickSpacing(20);
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slider.setMinorTickSpacing(10);
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slider.setPaintTicks(true);
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slider.setPaintLabels(true);
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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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threshold = source.getValue();
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update();
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}
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});
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//! [trackbar]
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sliderPanel.add(slider);
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pane.add(sliderPanel, BorderLayout.PAGE_START);
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JPanel imgPanel = new JPanel();
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imgSrcLabel = new JLabel(new ImageIcon(img));
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imgPanel.add(imgSrcLabel);
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Mat blackImg = Mat.zeros(srcGray.size(), CvType.CV_8U);
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imgContoursLabel = new JLabel(new ImageIcon(HighGui.toBufferedImage(blackImg)));
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imgPanel.add(imgContoursLabel);
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pane.add(imgPanel, BorderLayout.CENTER);
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}
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private void update() {
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//! [Canny]
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/// Detect edges using Canny
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Mat cannyOutput = new Mat();
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Imgproc.Canny(srcGray, cannyOutput, threshold, threshold * 2);
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//! [Canny]
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//! [findContours]
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/// Find contours
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List<MatOfPoint> contours = new ArrayList<>();
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Mat hierarchy = new Mat();
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Imgproc.findContours(cannyOutput, contours, hierarchy, Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_SIMPLE);
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//! [findContours]
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//! [allthework]
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/// Approximate contours to polygons + get bounding rects and circles
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MatOfPoint2f[] contoursPoly = new MatOfPoint2f[contours.size()];
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Rect[] boundRect = new Rect[contours.size()];
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Point[] centers = new Point[contours.size()];
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float[][] radius = new float[contours.size()][1];
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for (int i = 0; i < contours.size(); i++) {
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contoursPoly[i] = new MatOfPoint2f();
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Imgproc.approxPolyDP(new MatOfPoint2f(contours.get(i).toArray()), contoursPoly[i], 3, true);
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boundRect[i] = Imgproc.boundingRect(new MatOfPoint(contoursPoly[i].toArray()));
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centers[i] = new Point();
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Imgproc.minEnclosingCircle(contoursPoly[i], centers[i], radius[i]);
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}
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//! [allthework]
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//! [zeroMat]
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Mat drawing = Mat.zeros(cannyOutput.size(), CvType.CV_8UC3);
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//! [zeroMat]
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//! [forContour]
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/// Draw polygonal contour + bonding rects + circles
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List<MatOfPoint> contoursPolyList = new ArrayList<>(contoursPoly.length);
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for (MatOfPoint2f poly : contoursPoly) {
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contoursPolyList.add(new MatOfPoint(poly.toArray()));
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}
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for (int i = 0; i < contours.size(); i++) {
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Scalar color = new Scalar(rng.nextInt(256), rng.nextInt(256), rng.nextInt(256));
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Imgproc.drawContours(drawing, contoursPolyList, i, color);
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Imgproc.rectangle(drawing, boundRect[i].tl(), boundRect[i].br(), color, 2);
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Imgproc.circle(drawing, centers[i], (int) radius[i][0], color, 2);
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}
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//! [forContour]
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//! [showDrawings]
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/// Show in a window
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imgContoursLabel.setIcon(new ImageIcon(HighGui.toBufferedImage(drawing)));
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frame.repaint();
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//! [showDrawings]
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}
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}
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public class GeneralContoursDemo1 {
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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 GeneralContours1(args);
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}
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});
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}
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}
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@ -0,0 +1,176 @@
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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 java.util.ArrayList;
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import java.util.List;
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import java.util.Random;
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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.CvType;
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import org.opencv.core.Mat;
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import org.opencv.core.MatOfPoint;
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import org.opencv.core.MatOfPoint2f;
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import org.opencv.core.Point;
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import org.opencv.core.RotatedRect;
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import org.opencv.core.Scalar;
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import org.opencv.core.Size;
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import org.opencv.highgui.HighGui;
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import org.opencv.imgcodecs.Imgcodecs;
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import org.opencv.imgproc.Imgproc;
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class GeneralContours2 {
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private Mat srcGray = new Mat();
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private JFrame frame;
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private JLabel imgSrcLabel;
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private JLabel imgContoursLabel;
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private static final int MAX_THRESHOLD = 255;
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private int threshold = 100;
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private Random rng = new Random(12345);
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public GeneralContours2(String[] args) {
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//! [setup]
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/// Load source image
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String filename = args.length > 0 ? args[0] : "../data/stuff.jpg";
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Mat src = Imgcodecs.imread(filename);
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if (src.empty()) {
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System.err.println("Cannot read image: " + filename);
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System.exit(0);
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}
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/// Convert image to gray and blur it
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Imgproc.cvtColor(src, srcGray, Imgproc.COLOR_BGR2GRAY);
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Imgproc.blur(srcGray, srcGray, new Size(3, 3));
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//! [setup]
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//! [createWindow]
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// Create and set up the window.
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frame = new JFrame("Creating Bounding rotated boxes and ellipses for contours demo");
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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(src);
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addComponentsToPane(frame.getContentPane(), img);
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//! [createWindow]
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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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update();
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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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//! [trackbar]
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sliderPanel.add(new JLabel("Canny threshold: "));
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JSlider slider = new JSlider(0, MAX_THRESHOLD, threshold);
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slider.setMajorTickSpacing(20);
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slider.setMinorTickSpacing(10);
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slider.setPaintTicks(true);
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slider.setPaintLabels(true);
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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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threshold = source.getValue();
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update();
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}
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});
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//! [trackbar]
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sliderPanel.add(slider);
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pane.add(sliderPanel, BorderLayout.PAGE_START);
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JPanel imgPanel = new JPanel();
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imgSrcLabel = new JLabel(new ImageIcon(img));
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imgPanel.add(imgSrcLabel);
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Mat blackImg = Mat.zeros(srcGray.size(), CvType.CV_8U);
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imgContoursLabel = new JLabel(new ImageIcon(HighGui.toBufferedImage(blackImg)));
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imgPanel.add(imgContoursLabel);
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pane.add(imgPanel, BorderLayout.CENTER);
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}
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private void update() {
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//! [Canny]
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/// Detect edges using Canny
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Mat cannyOutput = new Mat();
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Imgproc.Canny(srcGray, cannyOutput, threshold, threshold * 2);
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//! [Canny]
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//! [findContours]
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/// Find contours
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List<MatOfPoint> contours = new ArrayList<>();
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Mat hierarchy = new Mat();
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Imgproc.findContours(cannyOutput, contours, hierarchy, Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_SIMPLE);
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//! [findContours]
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/// Find the rotated rectangles and ellipses for each contour
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RotatedRect[] minRect = new RotatedRect[contours.size()];
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RotatedRect[] minEllipse = new RotatedRect[contours.size()];
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for (int i = 0; i < contours.size(); i++) {
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minRect[i] = Imgproc.minAreaRect(new MatOfPoint2f(contours.get(i).toArray()));
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minEllipse[i] = new RotatedRect();
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if (contours.get(i).rows() > 5) {
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minEllipse[i] = Imgproc.fitEllipse(new MatOfPoint2f(contours.get(i).toArray()));
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}
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}
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//! [zeroMat]
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/// Draw contours + rotated rects + ellipses
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Mat drawing = Mat.zeros(cannyOutput.size(), CvType.CV_8UC3);
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//! [zeroMat]
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//! [forContour]
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for (int i = 0; i < contours.size(); i++) {
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Scalar color = new Scalar(rng.nextInt(256), rng.nextInt(256), rng.nextInt(256));
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// contour
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Imgproc.drawContours(drawing, contours, i, color);
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// ellipse
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Imgproc.ellipse(drawing, minEllipse[i], color, 2);
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// rotated rectangle
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Point[] rectPoints = new Point[4];
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minRect[i].points(rectPoints);
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for (int j = 0; j < 4; j++) {
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Imgproc.line(drawing, rectPoints[j], rectPoints[(j+1) % 4], color);
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}
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}
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//! [forContour]
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//! [showDrawings]
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/// Show in a window
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imgContoursLabel.setIcon(new ImageIcon(HighGui.toBufferedImage(drawing)));
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frame.repaint();
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//! [showDrawings]
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}
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}
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public class GeneralContoursDemo2 {
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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 GeneralContours2(args);
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}
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});
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}
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}
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@ -0,0 +1,137 @@
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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 java.util.ArrayList;
|
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import java.util.List;
|
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import java.util.Random;
|
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|
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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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|
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import org.opencv.core.Core;
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import org.opencv.core.CvType;
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import org.opencv.core.Mat;
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import org.opencv.core.MatOfPoint;
|
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import org.opencv.core.Point;
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import org.opencv.core.Scalar;
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import org.opencv.core.Size;
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import org.opencv.highgui.HighGui;
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import org.opencv.imgcodecs.Imgcodecs;
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import org.opencv.imgproc.Imgproc;
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class FindContours {
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private Mat srcGray = new Mat();
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private JFrame frame;
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private JLabel imgSrcLabel;
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private JLabel imgContoursLabel;
|
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private static final int MAX_THRESHOLD = 255;
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private int threshold = 100;
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private Random rng = new Random(12345);
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public FindContours(String[] args) {
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/// Load source image
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String filename = args.length > 0 ? args[0] : "../data/HappyFish.jpg";
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Mat src = Imgcodecs.imread(filename);
|
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if (src.empty()) {
|
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System.err.println("Cannot read image: " + filename);
|
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System.exit(0);
|
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}
|
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|
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/// Convert image to gray and blur it
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Imgproc.cvtColor(src, srcGray, Imgproc.COLOR_BGR2GRAY);
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Imgproc.blur(srcGray, srcGray, new Size(3, 3));
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// Create and set up the window.
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frame = new JFrame("Finding contours in your image demo");
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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(src);
|
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addComponentsToPane(frame.getContentPane(), img);
|
||||
// Use the content pane's default BorderLayout. No need for
|
||||
// setLayout(new BorderLayout());
|
||||
// Display the window.
|
||||
frame.pack();
|
||||
frame.setVisible(true);
|
||||
update();
|
||||
}
|
||||
|
||||
private void addComponentsToPane(Container pane, Image img) {
|
||||
if (!(pane.getLayout() instanceof BorderLayout)) {
|
||||
pane.add(new JLabel("Container doesn't use BorderLayout!"));
|
||||
return;
|
||||
}
|
||||
|
||||
JPanel sliderPanel = new JPanel();
|
||||
sliderPanel.setLayout(new BoxLayout(sliderPanel, BoxLayout.PAGE_AXIS));
|
||||
|
||||
sliderPanel.add(new JLabel("Canny threshold: "));
|
||||
JSlider slider = new JSlider(0, MAX_THRESHOLD, threshold);
|
||||
slider.setMajorTickSpacing(20);
|
||||
slider.setMinorTickSpacing(10);
|
||||
slider.setPaintTicks(true);
|
||||
slider.setPaintLabels(true);
|
||||
slider.addChangeListener(new ChangeListener() {
|
||||
@Override
|
||||
public void stateChanged(ChangeEvent e) {
|
||||
JSlider source = (JSlider) e.getSource();
|
||||
threshold = source.getValue();
|
||||
update();
|
||||
}
|
||||
});
|
||||
sliderPanel.add(slider);
|
||||
pane.add(sliderPanel, BorderLayout.PAGE_START);
|
||||
|
||||
JPanel imgPanel = new JPanel();
|
||||
imgSrcLabel = new JLabel(new ImageIcon(img));
|
||||
imgPanel.add(imgSrcLabel);
|
||||
|
||||
Mat blackImg = Mat.zeros(srcGray.size(), CvType.CV_8U);
|
||||
imgContoursLabel = new JLabel(new ImageIcon(HighGui.toBufferedImage(blackImg)));
|
||||
imgPanel.add(imgContoursLabel);
|
||||
|
||||
pane.add(imgPanel, BorderLayout.CENTER);
|
||||
}
|
||||
|
||||
private void update() {
|
||||
/// Detect edges using Canny
|
||||
Mat cannyOutput = new Mat();
|
||||
Imgproc.Canny(srcGray, cannyOutput, threshold, threshold * 2);
|
||||
|
||||
/// Find contours
|
||||
List<MatOfPoint> contours = new ArrayList<>();
|
||||
Mat hierarchy = new Mat();
|
||||
Imgproc.findContours(cannyOutput, contours, hierarchy, Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_SIMPLE);
|
||||
|
||||
/// Draw contours
|
||||
Mat drawing = Mat.zeros(cannyOutput.size(), CvType.CV_8UC3);
|
||||
for (int i = 0; i < contours.size(); i++) {
|
||||
Scalar color = new Scalar(rng.nextInt(256), rng.nextInt(256), rng.nextInt(256));
|
||||
Imgproc.drawContours(drawing, contours, i, color, 2, Imgproc.LINE_8, hierarchy, 0, new Point());
|
||||
}
|
||||
|
||||
imgContoursLabel.setIcon(new ImageIcon(HighGui.toBufferedImage(drawing)));
|
||||
frame.repaint();
|
||||
}
|
||||
}
|
||||
|
||||
public class FindContoursDemo {
|
||||
public static void main(String[] args) {
|
||||
// Load the native OpenCV library
|
||||
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
|
||||
|
||||
// Schedule a job for the event dispatch thread:
|
||||
// creating and showing this application's GUI.
|
||||
javax.swing.SwingUtilities.invokeLater(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
new FindContours(args);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
154
3rdparty/opencv-4.5.4/samples/java/tutorial_code/ShapeDescriptors/hull/HullDemo.java
vendored
Normal file
154
3rdparty/opencv-4.5.4/samples/java/tutorial_code/ShapeDescriptors/hull/HullDemo.java
vendored
Normal file
@ -0,0 +1,154 @@
|
||||
import java.awt.BorderLayout;
|
||||
import java.awt.Container;
|
||||
import java.awt.Image;
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
import java.util.Random;
|
||||
|
||||
import javax.swing.BoxLayout;
|
||||
import javax.swing.ImageIcon;
|
||||
import javax.swing.JFrame;
|
||||
import javax.swing.JLabel;
|
||||
import javax.swing.JPanel;
|
||||
import javax.swing.JSlider;
|
||||
import javax.swing.event.ChangeEvent;
|
||||
import javax.swing.event.ChangeListener;
|
||||
|
||||
import org.opencv.core.Core;
|
||||
import org.opencv.core.CvType;
|
||||
import org.opencv.core.Mat;
|
||||
import org.opencv.core.MatOfInt;
|
||||
import org.opencv.core.MatOfPoint;
|
||||
import org.opencv.core.Point;
|
||||
import org.opencv.core.Scalar;
|
||||
import org.opencv.core.Size;
|
||||
import org.opencv.highgui.HighGui;
|
||||
import org.opencv.imgcodecs.Imgcodecs;
|
||||
import org.opencv.imgproc.Imgproc;
|
||||
|
||||
class Hull {
|
||||
private Mat srcGray = new Mat();
|
||||
private JFrame frame;
|
||||
private JLabel imgSrcLabel;
|
||||
private JLabel imgContoursLabel;
|
||||
private static final int MAX_THRESHOLD = 255;
|
||||
private int threshold = 100;
|
||||
private Random rng = new Random(12345);
|
||||
|
||||
public Hull(String[] args) {
|
||||
/// Load source image
|
||||
String filename = args.length > 0 ? args[0] : "../data/stuff.jpg";
|
||||
Mat src = Imgcodecs.imread(filename);
|
||||
if (src.empty()) {
|
||||
System.err.println("Cannot read image: " + filename);
|
||||
System.exit(0);
|
||||
}
|
||||
|
||||
/// Convert image to gray and blur it
|
||||
Imgproc.cvtColor(src, srcGray, Imgproc.COLOR_BGR2GRAY);
|
||||
Imgproc.blur(srcGray, srcGray, new Size(3, 3));
|
||||
|
||||
// Create and set up the window.
|
||||
frame = new JFrame("Convex Hull demo");
|
||||
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
|
||||
// Set up the content pane.
|
||||
Image img = HighGui.toBufferedImage(src);
|
||||
addComponentsToPane(frame.getContentPane(), img);
|
||||
// Use the content pane's default BorderLayout. No need for
|
||||
// setLayout(new BorderLayout());
|
||||
// Display the window.
|
||||
frame.pack();
|
||||
frame.setVisible(true);
|
||||
update();
|
||||
}
|
||||
|
||||
private void addComponentsToPane(Container pane, Image img) {
|
||||
if (!(pane.getLayout() instanceof BorderLayout)) {
|
||||
pane.add(new JLabel("Container doesn't use BorderLayout!"));
|
||||
return;
|
||||
}
|
||||
|
||||
JPanel sliderPanel = new JPanel();
|
||||
sliderPanel.setLayout(new BoxLayout(sliderPanel, BoxLayout.PAGE_AXIS));
|
||||
|
||||
sliderPanel.add(new JLabel("Canny threshold: "));
|
||||
JSlider slider = new JSlider(0, MAX_THRESHOLD, threshold);
|
||||
slider.setMajorTickSpacing(20);
|
||||
slider.setMinorTickSpacing(10);
|
||||
slider.setPaintTicks(true);
|
||||
slider.setPaintLabels(true);
|
||||
slider.addChangeListener(new ChangeListener() {
|
||||
@Override
|
||||
public void stateChanged(ChangeEvent e) {
|
||||
JSlider source = (JSlider) e.getSource();
|
||||
threshold = source.getValue();
|
||||
update();
|
||||
}
|
||||
});
|
||||
sliderPanel.add(slider);
|
||||
pane.add(sliderPanel, BorderLayout.PAGE_START);
|
||||
|
||||
JPanel imgPanel = new JPanel();
|
||||
imgSrcLabel = new JLabel(new ImageIcon(img));
|
||||
imgPanel.add(imgSrcLabel);
|
||||
|
||||
Mat blackImg = Mat.zeros(srcGray.size(), CvType.CV_8U);
|
||||
imgContoursLabel = new JLabel(new ImageIcon(HighGui.toBufferedImage(blackImg)));
|
||||
imgPanel.add(imgContoursLabel);
|
||||
|
||||
pane.add(imgPanel, BorderLayout.CENTER);
|
||||
}
|
||||
|
||||
private void update() {
|
||||
/// Detect edges using Canny
|
||||
Mat cannyOutput = new Mat();
|
||||
Imgproc.Canny(srcGray, cannyOutput, threshold, threshold * 2);
|
||||
|
||||
/// Find contours
|
||||
List<MatOfPoint> contours = new ArrayList<>();
|
||||
Mat hierarchy = new Mat();
|
||||
Imgproc.findContours(cannyOutput, contours, hierarchy, Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_SIMPLE);
|
||||
|
||||
/// Find the convex hull object for each contour
|
||||
List<MatOfPoint> hullList = new ArrayList<>();
|
||||
for (MatOfPoint contour : contours) {
|
||||
MatOfInt hull = new MatOfInt();
|
||||
Imgproc.convexHull(contour, hull);
|
||||
|
||||
Point[] contourArray = contour.toArray();
|
||||
Point[] hullPoints = new Point[hull.rows()];
|
||||
List<Integer> hullContourIdxList = hull.toList();
|
||||
for (int i = 0; i < hullContourIdxList.size(); i++) {
|
||||
hullPoints[i] = contourArray[hullContourIdxList.get(i)];
|
||||
}
|
||||
hullList.add(new MatOfPoint(hullPoints));
|
||||
}
|
||||
|
||||
/// Draw contours + hull results
|
||||
Mat drawing = Mat.zeros(cannyOutput.size(), CvType.CV_8UC3);
|
||||
for (int i = 0; i < contours.size(); i++) {
|
||||
Scalar color = new Scalar(rng.nextInt(256), rng.nextInt(256), rng.nextInt(256));
|
||||
Imgproc.drawContours(drawing, contours, i, color);
|
||||
Imgproc.drawContours(drawing, hullList, i, color );
|
||||
}
|
||||
|
||||
imgContoursLabel.setIcon(new ImageIcon(HighGui.toBufferedImage(drawing)));
|
||||
frame.repaint();
|
||||
}
|
||||
}
|
||||
|
||||
public class HullDemo {
|
||||
public static void main(String[] args) {
|
||||
// Load the native OpenCV library
|
||||
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
|
||||
|
||||
// Schedule a job for the event dispatch thread:
|
||||
// creating and showing this application's GUI.
|
||||
javax.swing.SwingUtilities.invokeLater(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
new Hull(args);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
178
3rdparty/opencv-4.5.4/samples/java/tutorial_code/ShapeDescriptors/moments/MomentsDemo.java
vendored
Normal file
178
3rdparty/opencv-4.5.4/samples/java/tutorial_code/ShapeDescriptors/moments/MomentsDemo.java
vendored
Normal file
@ -0,0 +1,178 @@
|
||||
import java.awt.BorderLayout;
|
||||
import java.awt.Container;
|
||||
import java.awt.Image;
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
import java.util.Random;
|
||||
|
||||
import javax.swing.BoxLayout;
|
||||
import javax.swing.ImageIcon;
|
||||
import javax.swing.JFrame;
|
||||
import javax.swing.JLabel;
|
||||
import javax.swing.JPanel;
|
||||
import javax.swing.JSlider;
|
||||
import javax.swing.event.ChangeEvent;
|
||||
import javax.swing.event.ChangeListener;
|
||||
|
||||
import org.opencv.core.Core;
|
||||
import org.opencv.core.CvType;
|
||||
import org.opencv.core.Mat;
|
||||
import org.opencv.core.MatOfPoint;
|
||||
import org.opencv.core.MatOfPoint2f;
|
||||
import org.opencv.core.Point;
|
||||
import org.opencv.core.Scalar;
|
||||
import org.opencv.core.Size;
|
||||
import org.opencv.highgui.HighGui;
|
||||
import org.opencv.imgcodecs.Imgcodecs;
|
||||
import org.opencv.imgproc.Imgproc;
|
||||
import org.opencv.imgproc.Moments;
|
||||
|
||||
class MomentsClass {
|
||||
private Mat srcGray = new Mat();
|
||||
private JFrame frame;
|
||||
private JLabel imgSrcLabel;
|
||||
private JLabel imgContoursLabel;
|
||||
private static final int MAX_THRESHOLD = 255;
|
||||
private int threshold = 100;
|
||||
private Random rng = new Random(12345);
|
||||
|
||||
public MomentsClass(String[] args) {
|
||||
//! [setup]
|
||||
/// Load source image
|
||||
String filename = args.length > 0 ? args[0] : "../data/stuff.jpg";
|
||||
Mat src = Imgcodecs.imread(filename);
|
||||
if (src.empty()) {
|
||||
System.err.println("Cannot read image: " + filename);
|
||||
System.exit(0);
|
||||
}
|
||||
|
||||
/// Convert image to gray and blur it
|
||||
Imgproc.cvtColor(src, srcGray, Imgproc.COLOR_BGR2GRAY);
|
||||
Imgproc.blur(srcGray, srcGray, new Size(3, 3));
|
||||
//! [setup]
|
||||
|
||||
//! [createWindow]
|
||||
// Create and set up the window.
|
||||
frame = new JFrame("Image Moments demo");
|
||||
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
|
||||
// Set up the content pane.
|
||||
Image img = HighGui.toBufferedImage(src);
|
||||
addComponentsToPane(frame.getContentPane(), img);
|
||||
//! [createWindow]
|
||||
// Use the content pane's default BorderLayout. No need for
|
||||
// setLayout(new BorderLayout());
|
||||
// Display the window.
|
||||
frame.pack();
|
||||
frame.setVisible(true);
|
||||
update();
|
||||
}
|
||||
|
||||
private void addComponentsToPane(Container pane, Image img) {
|
||||
if (!(pane.getLayout() instanceof BorderLayout)) {
|
||||
pane.add(new JLabel("Container doesn't use BorderLayout!"));
|
||||
return;
|
||||
}
|
||||
|
||||
JPanel sliderPanel = new JPanel();
|
||||
sliderPanel.setLayout(new BoxLayout(sliderPanel, BoxLayout.PAGE_AXIS));
|
||||
|
||||
//! [trackbar]
|
||||
sliderPanel.add(new JLabel("Canny threshold: "));
|
||||
JSlider slider = new JSlider(0, MAX_THRESHOLD, threshold);
|
||||
slider.setMajorTickSpacing(20);
|
||||
slider.setMinorTickSpacing(10);
|
||||
slider.setPaintTicks(true);
|
||||
slider.setPaintLabels(true);
|
||||
slider.addChangeListener(new ChangeListener() {
|
||||
@Override
|
||||
public void stateChanged(ChangeEvent e) {
|
||||
JSlider source = (JSlider) e.getSource();
|
||||
threshold = source.getValue();
|
||||
update();
|
||||
}
|
||||
});
|
||||
//! [trackbar]
|
||||
sliderPanel.add(slider);
|
||||
pane.add(sliderPanel, BorderLayout.PAGE_START);
|
||||
|
||||
JPanel imgPanel = new JPanel();
|
||||
imgSrcLabel = new JLabel(new ImageIcon(img));
|
||||
imgPanel.add(imgSrcLabel);
|
||||
|
||||
Mat blackImg = Mat.zeros(srcGray.size(), CvType.CV_8U);
|
||||
imgContoursLabel = new JLabel(new ImageIcon(HighGui.toBufferedImage(blackImg)));
|
||||
imgPanel.add(imgContoursLabel);
|
||||
|
||||
pane.add(imgPanel, BorderLayout.CENTER);
|
||||
}
|
||||
|
||||
private void update() {
|
||||
//! [Canny]
|
||||
/// Detect edges using Canny
|
||||
Mat cannyOutput = new Mat();
|
||||
Imgproc.Canny(srcGray, cannyOutput, threshold, threshold * 2);
|
||||
//! [Canny]
|
||||
|
||||
//! [findContours]
|
||||
/// Find contours
|
||||
List<MatOfPoint> contours = new ArrayList<>();
|
||||
Mat hierarchy = new Mat();
|
||||
Imgproc.findContours(cannyOutput, contours, hierarchy, Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_SIMPLE);
|
||||
//! [findContours]
|
||||
|
||||
/// Get the moments
|
||||
List<Moments> mu = new ArrayList<>(contours.size());
|
||||
for (int i = 0; i < contours.size(); i++) {
|
||||
mu.add(Imgproc.moments(contours.get(i)));
|
||||
}
|
||||
|
||||
/// Get the mass centers
|
||||
List<Point> mc = new ArrayList<>(contours.size());
|
||||
for (int i = 0; i < contours.size(); i++) {
|
||||
//add 1e-5 to avoid division by zero
|
||||
mc.add(new Point(mu.get(i).m10 / (mu.get(i).m00 + 1e-5), mu.get(i).m01 / (mu.get(i).m00 + 1e-5)));
|
||||
}
|
||||
|
||||
//! [zeroMat]
|
||||
/// Draw contours
|
||||
Mat drawing = Mat.zeros(cannyOutput.size(), CvType.CV_8UC3);
|
||||
//! [zeroMat]
|
||||
//! [forContour]
|
||||
for (int i = 0; i < contours.size(); i++) {
|
||||
Scalar color = new Scalar(rng.nextInt(256), rng.nextInt(256), rng.nextInt(256));
|
||||
Imgproc.drawContours(drawing, contours, i, color, 2);
|
||||
Imgproc.circle(drawing, mc.get(i), 4, color, -1);
|
||||
}
|
||||
//! [forContour]
|
||||
|
||||
//! [showDrawings]
|
||||
/// Show in a window
|
||||
imgContoursLabel.setIcon(new ImageIcon(HighGui.toBufferedImage(drawing)));
|
||||
frame.repaint();
|
||||
//! [showDrawings]
|
||||
|
||||
/// Calculate the area with the moments 00 and compare with the result of the OpenCV function
|
||||
System.out.println("\t Info: Area and Contour Length \n");
|
||||
for (int i = 0; i < contours.size(); i++) {
|
||||
System.out.format(" * Contour[%d] - Area (M_00) = %.2f - Area OpenCV: %.2f - Length: %.2f\n", i,
|
||||
mu.get(i).m00, Imgproc.contourArea(contours.get(i)),
|
||||
Imgproc.arcLength(new MatOfPoint2f(contours.get(i).toArray()), true));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public class MomentsDemo {
|
||||
public static void main(String[] args) {
|
||||
// Load the native OpenCV library
|
||||
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
|
||||
|
||||
// Schedule a job for the event dispatch thread:
|
||||
// creating and showing this application's GUI.
|
||||
javax.swing.SwingUtilities.invokeLater(new Runnable() {
|
||||
@Override
|
||||
public void run() {
|
||||
new MomentsClass(args);
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,94 @@
|
||||
import java.util.ArrayList;
|
||||
import java.util.List;
|
||||
|
||||
import org.opencv.core.Core;
|
||||
import org.opencv.core.Core.MinMaxLocResult;
|
||||
import org.opencv.core.CvType;
|
||||
import org.opencv.core.Mat;
|
||||
import org.opencv.core.MatOfPoint;
|
||||
import org.opencv.core.MatOfPoint2f;
|
||||
import org.opencv.core.Point;
|
||||
import org.opencv.core.Scalar;
|
||||
import org.opencv.core.Size;
|
||||
import org.opencv.highgui.HighGui;
|
||||
import org.opencv.imgproc.Imgproc;
|
||||
|
||||
class PointPolygonTest {
|
||||
public void run() {
|
||||
/// Create an image
|
||||
int r = 100;
|
||||
Mat src = Mat.zeros(new Size(4 * r, 4 * r), CvType.CV_8U);
|
||||
|
||||
/// Create a sequence of points to make a contour
|
||||
List<Point> vert = new ArrayList<>(6);
|
||||
vert.add(new Point(3 * r / 2, 1.34 * r));
|
||||
vert.add(new Point(1 * r, 2 * r));
|
||||
vert.add(new Point(3 * r / 2, 2.866 * r));
|
||||
vert.add(new Point(5 * r / 2, 2.866 * r));
|
||||
vert.add(new Point(3 * r, 2 * r));
|
||||
vert.add(new Point(5 * r / 2, 1.34 * r));
|
||||
|
||||
/// Draw it in src
|
||||
for (int i = 0; i < 6; i++) {
|
||||
Imgproc.line(src, vert.get(i), vert.get((i + 1) % 6), new Scalar(255), 3);
|
||||
}
|
||||
|
||||
/// Get the contours
|
||||
List<MatOfPoint> contours = new ArrayList<>();
|
||||
Mat hierarchy = new Mat();
|
||||
Imgproc.findContours(src, contours, hierarchy, Imgproc.RETR_TREE, Imgproc.CHAIN_APPROX_SIMPLE);
|
||||
|
||||
/// Calculate the distances to the contour
|
||||
Mat rawDist = new Mat(src.size(), CvType.CV_32F);
|
||||
float[] rawDistData = new float[(int) (rawDist.total() * rawDist.channels())];
|
||||
for (int i = 0; i < src.rows(); i++) {
|
||||
for (int j = 0; j < src.cols(); j++) {
|
||||
rawDistData[i * src.cols() + j] = (float) Imgproc
|
||||
.pointPolygonTest(new MatOfPoint2f(contours.get(0).toArray()), new Point(j, i), true);
|
||||
}
|
||||
}
|
||||
rawDist.put(0, 0, rawDistData);
|
||||
|
||||
MinMaxLocResult res = Core.minMaxLoc(rawDist);
|
||||
double minVal = Math.abs(res.minVal);
|
||||
double maxVal = Math.abs(res.maxVal);
|
||||
|
||||
/// Depicting the distances graphically
|
||||
Mat drawing = Mat.zeros(src.size(), CvType.CV_8UC3);
|
||||
byte[] drawingData = new byte[(int) (drawing.total() * drawing.channels())];
|
||||
for (int i = 0; i < src.rows(); i++) {
|
||||
for (int j = 0; j < src.cols(); j++) {
|
||||
if (rawDistData[i * src.cols() + j] < 0) {
|
||||
drawingData[(i * src.cols() + j) * 3] =
|
||||
(byte) (255 - Math.abs(rawDistData[i * src.cols() + j]) * 255 / minVal);
|
||||
} else if (rawDistData[i * src.cols() + j] > 0) {
|
||||
drawingData[(i * src.cols() + j) * 3 + 2] =
|
||||
(byte) (255 - rawDistData[i * src.cols() + j] * 255 / maxVal);
|
||||
} else {
|
||||
drawingData[(i * src.cols() + j) * 3] = (byte) 255;
|
||||
drawingData[(i * src.cols() + j) * 3 + 1] = (byte) 255;
|
||||
drawingData[(i * src.cols() + j) * 3 + 2] = (byte) 255;
|
||||
}
|
||||
}
|
||||
}
|
||||
drawing.put(0, 0, drawingData);
|
||||
Imgproc.circle(drawing, res.maxLoc, (int)res.maxVal, new Scalar(255, 255, 255), 2, 8, 0);
|
||||
|
||||
/// Show your results
|
||||
HighGui.imshow("Source", src);
|
||||
HighGui.imshow("Distance and inscribed circle", drawing);
|
||||
|
||||
HighGui.waitKey();
|
||||
System.exit(0);
|
||||
}
|
||||
}
|
||||
|
||||
public class PointPolygonTestDemo {
|
||||
public static void main(String[] args) {
|
||||
// Load the native OpenCV library
|
||||
System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
|
||||
|
||||
new PointPolygonTest().run();
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user