init - 初始化项目

samples/java/tutorial_code/Histograms_Matching/histogram_equalization/EqualizeHistDemo.java

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+import org.opencv.core.Core;
+import org.opencv.core.Mat;
+import org.opencv.highgui.HighGui;
+import org.opencv.imgcodecs.Imgcodecs;
+import org.opencv.imgproc.Imgproc;
+
+class EqualizeHist {
+    public void run(String[] args) {
+        //! [Load image]
+        String filename = args.length > 0 ? args[0] : "../data/lena.jpg";
+        Mat src = Imgcodecs.imread(filename);
+        if (src.empty()) {
+            System.err.println("Cannot read image: " + filename);
+            System.exit(0);
+        }
+        //! [Load image]
+
+        //! [Convert to grayscale]
+        Imgproc.cvtColor(src, src, Imgproc.COLOR_BGR2GRAY);
+        //! [Convert to grayscale]
+
+        //! [Apply Histogram Equalization]
+        Mat dst = new Mat();
+        Imgproc.equalizeHist( src, dst );
+        //! [Apply Histogram Equalization]
+
+        //! [Display results]
+        HighGui.imshow( "Source image", src );
+        HighGui.imshow( "Equalized Image", dst );
+        //! [Display results]
+
+        //! [Wait until user exits the program]
+        HighGui.waitKey(0);
+        //! [Wait until user exits the program]
+
+        System.exit(0);
+    }
+}
+
+public class EqualizeHistDemo {
+
+    public static void main(String[] args) {
+        // Load the native OpenCV library
+        System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
+
+        new EqualizeHist().run(args);
+    }
+
+}