added PAP for image mirror

image-project/ImageMirror.java

@@ -0,0 +1,59 @@
+import java.awt.Color;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import javax.imageio.ImageIO;
+
+public class ImageMirror {
+
+    public static void main(String [] args) {
+
+        String outFormat = "png";
+        File inputPath = new File("img/Doctor_Strange.png");
+        File outputPath = new File("img/Doctor_Strange_spiegel.png");
+
+        BufferedImage original_image = null;
+
+        try {
+            original_image = ImageIO.read(inputPath);
+            System.out.println("Reading " + inputPath + " complete !"); }
+        catch (IOException e) {
+            System.out.println("Error: " + e);
+            System.exit(1);
+        }
+
+        int width =  original_image.getWidth();
+        int height =  original_image.getHeight();
+
+        System.out.println("\n" + "width = " + width + " height = " +
+                           height + "\n");
+
+        BufferedImage newImage = new BufferedImage(width * 2, height,
+                                         BufferedImage.TYPE_INT_ARGB); 
+        newImage.createGraphics().drawImage(original_image, 0, 0, null);
+    
+        int p;
+
+        for (int y = 0; y < height; y++) {
+            // lx/rx starts from the left/right side of the image
+            for (int lx = 0, rx = width*2 - 1; lx < width; lx++, rx--) {
+                // Pixelwert an der Koordinate (lx, y) abfragen und speichern
+                p = newImage.getRGB(lx, y);
+                // Spiegel-Pixel-Wert p an der Koordinate (lx, y) setzen
+                newImage.setRGB(lx, y, p);
+                // Spiegel-Pixel-Wert p an der Koordinate (rx, y) setzen
+                newImage.setRGB(rx, y, p);
+                }
+        }
+
+        try {
+            ImageIO.write(newImage.getSubimage(width, 0, width, height), outFormat, outputPath);
+            System.out.println("Writing " + outputPath + " complete !"); }
+        catch(IOException e) {
+            System.out.println("Error: " + e); 
+            System.exit(1);
+        }
+
+        System.exit(0);
+    }
+}