Tutorial Adding Images

samples/java/tutorial_code/core/AddingImages/AddingImages.java

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+import org.opencv.core.*;
+import org.opencv.highgui.HighGui;
+import org.opencv.imgcodecs.Imgcodecs;
+
+import java.util.Locale;
+import java.util.Scanner;
+
+class AddingImagesRun{
+    public void run() {
+        double alpha = 0.5; double beta; double input;
+
+        Mat src1, src2, dst = new Mat();
+
+        System.out.println(" Simple Linear Blender ");
+        System.out.println("-----------------------");
+        System.out.println("* Enter alpha [0.0-1.0]: ");
+        Scanner scan = new Scanner( System.in ).useLocale(Locale.US);
+        input = scan.nextDouble();
+
+        if( input >= 0.0 && input <= 1.0 )
+            alpha = input;
+
+        //! [load]
+        src1 = Imgcodecs.imread("../../images/LinuxLogo.jpg");
+        src2 = Imgcodecs.imread("../../images/WindowsLogo.jpg");
+        //! [load]
+
+        if( src1.empty() == true ){ System.out.println("Error loading src1"); return;}
+        if( src2.empty() == true ){ System.out.println("Error loading src2"); return;}
+
+        //! [blend_images]
+        beta = ( 1.0 - alpha );
+        Core.addWeighted( src1, alpha, src2, beta, 0.0, dst);
+        //! [blend_images]
+
+        //![display]
+        HighGui.imshow("Linear Blend", dst);
+        HighGui.waitKey(0);
+        //![display]
+
+        System.exit(0);
+    }
+}
+
+public class AddingImages {
+    public static void main(String[] args) {
+        // Load the native library.
+        System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
+        new AddingImagesRun().run();
+    }
+}