Upload final Commit

Week9/Assignment9/src/DesaturateIt_Template.java

@@ -0,0 +1,42 @@
+import java.io.File;
+import java.util.Arrays;
+
+public class DesaturateIt_Template{
+	public static void main(String [] args){
+		int [][][] rgb = Java101ImageUtil.getRGBArrayFromFile();
+		if(rgb==null){return;}
+		int[][][] gray = grayscale(rgb);
+		int[][][] sepia = sepia(rgb);
+		// fill code to show all three images
+		// - original, grayscale, sepia
+		//Array Structure
+		// [X][Y][COLOR]
+		int[][][][] images = new int[3][][][];
+		images[0]=rgb;
+		images[1]=gray;
+		images[2]=sepia;
+		Java101ImageUtil.showViewer(images,"show all");
+	}
+
+	public static int [][][] grayscale(int [][][] rgb) {
+		// fill code
+		int[][][] grayscale = new int [rgb.length][rgb[0].length][3];
+		for(int i=0;i<grayscale.length;i++) for(int j=0;j<grayscale[0].length;j++) {
+			int modifiedColor = (int)Math.ceil((rgb[i][j][0]+rgb[i][j][1]+rgb[i][j][2])/3.0);
+			for(int k = 0;k<3;k++)grayscale[i][j][k] = modifiedColor;
+		}
+		return grayscale;
+	}
+
+	public static int [][][] sepia(int [][][] rgb) {
+		// fill code
+		int[][][] sepia = new int [rgb.length][rgb[0].length][3];
+		for(int i=0;i<sepia.length;i++) for(int j=0;j<sepia[0].length;j++) {
+			int modifiedColor = (int)Math.ceil((rgb[i][j][0]+rgb[i][j][1]+rgb[i][j][2])/3.0);
+			sepia[i][j][0] = (int)(modifiedColor*0.8745);
+			sepia[i][j][1] = (int)(modifiedColor*0.6352);
+			sepia[i][j][2] = (int)(modifiedColor*0.4941);
+		}
+		return sepia;
+	}
+}

Week9/Assignment9/src/Java101ImageUtil.java

@@ -0,0 +1,115 @@
+import javax.swing.*;
+import javax.swing.filechooser.FileNameExtensionFilter;
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.*;
+import java.awt.Color;
+import java.awt.*;
+import java.awt.event.*;
+import javax.swing.*;
+
+public class Java101ImageUtil{
+	public static int [][][] getRGBArrayFromFile(){
+		JFileChooser chooser = new JFileChooser();
+	    FileNameExtensionFilter filter = new FileNameExtensionFilter(
+        "JPG & GIF Images", "jpg", "gif");
+	    chooser.setFileFilter(filter);
+	    int returnVal = chooser.showOpenDialog(null);
+	    if(returnVal == JFileChooser.APPROVE_OPTION) {
+	       	return getRGBArrayOfSelectedFile(chooser.getSelectedFile());
+	    }else{
+	    	return null;
+	    }
+	}
+	public static int [][][] getRGBArrayOfSelectedFile(File file){
+		BufferedImage img = null;
+		try {
+		    img = ImageIO.read(file);
+		} catch (IOException e) {
+			System.out.println("Cannot read the selected file.");
+			System.exit(1);
+		}
+		int h = img.getHeight();
+		int w = img.getWidth();
+		int[][][] rgb = new int[w][h][3];
+		for( int i = 0; i < w; i++ ){
+		    for( int j = 0; j < h; j++ ){
+		    	Color c = new Color(img.getRGB(i,j));
+		        rgb[i][j][0] = c.getRed();
+		        rgb[i][j][1] = c.getGreen();
+		        rgb[i][j][2] = c.getBlue();
+			}
+		}
+		return rgb;
+	}
+	public static void showViewer(int [][][] rgb,String title){
+		Java101Viewer frame = new Java101Viewer(rgb,title);
+		initViewer(frame);
+	}
+	public static void showViewer(int [][][] rgb1,int [][][] rgb2,String title){
+		Java101Viewer frame = new Java101Viewer(rgb1,rgb2,title);
+		initViewer(frame);
+	}
+	public static void showViewer(int [][][][] rgbs,String title){
+		Java101Viewer frame = new Java101Viewer(rgbs,title);
+		initViewer(frame);
+	}
+	private static void initViewer(Java101Viewer frame){
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+       	frame.pack();
+        frame.setVisible(true);
+        System.out.println("Close the image viewer to exit the program.");
+	}
+}
+
+class Java101Viewer extends JFrame{
+	public Java101Viewer(int [][][] rgb,String title){
+		super(title);
+		setLayout(new GridLayout(1,1));
+		Java101DrawingPanel drawing = new Java101DrawingPanel(rgb);
+		add(drawing);
+	}  
+	public Java101Viewer(int [][][] rgb1,int [][][] rgb2,String title){
+		super(title);
+		setLayout(new GridLayout(1,2));
+		Java101DrawingPanel drawingLeft = new Java101DrawingPanel(rgb1);
+		add(drawingLeft);
+		Java101DrawingPanel drawingRight = new Java101DrawingPanel(rgb2);
+		add(drawingRight);
+	}
+	public Java101Viewer(int [][][][] rgbs,String title){
+		super(title);
+		int num = rgbs.length;
+		Java101DrawingPanel [] drawings = new Java101DrawingPanel[num];
+		setLayout(new GridLayout(1,num));
+		for(int i=0;i<num;i++){
+			drawings[i] = new Java101DrawingPanel(rgbs[i]);
+			add(drawings[i]);
+		}
+	}
+}
+
+class Java101DrawingPanel extends JPanel{
+	BufferedImage bi;
+	public Java101DrawingPanel(int [][][] rgb){
+		int w = rgb.length;
+		int h = rgb[0].length;
+		bi = new BufferedImage(w,h,BufferedImage.TYPE_INT_ARGB);
+		setPreferredSize(new Dimension(w,h));
+		System.out.println("Image size=("+w+","+h+")");
+		paintImage(rgb);
+	}
+	public void paintComponent(Graphics g){
+		super.paintComponent(g);
+		g.drawImage(bi,0,0,null);
+	}
+	private void paintImage(int [][][] rgb){
+		for(int x=0;x<rgb.length;x++){
+			for(int y=0;y<rgb[x].length;y++){
+				Color c = new Color(rgb[x][y][0],rgb[x][y][1],rgb[x][y][2]);
+				int rgbInt = c.getRGB();
+				bi.setRGB(x,y,rgbInt);
+			}
+		}
+	}
+}

Week9/Assignment9/src/Java101ImageUtilExample.java

@@ -0,0 +1,75 @@
+import java.util.Scanner;
+public class Java101ImageUtilExample{
+	public static void main(String [] args){
+		int [][][] rgb1 = Java101ImageUtil.getRGBArrayFromFile();
+		if(rgb1==null){
+			return;
+		}
+		int [][][] rgb2 = flipVertical(rgb1);
+		int [][][] rgb3 = genAllRed(64,128);
+		char choice;
+		do {
+			choice = getUserChoice(genChoiceMenu());
+			String title;
+			switch(choice){
+				case '1':
+					title = "One image";
+					Java101ImageUtil.showViewer(rgb1,title);
+					break;
+				case '2':
+					title = "One image and its flipped version";
+					Java101ImageUtil.showViewer(rgb1,rgb2,title);
+					break;
+				case '3':
+					title = "One image, its flipped version, and a 64x128 all red";
+					int [][][][] rgbs = new int[3][][][];
+					rgbs[0] = rgb1;
+					rgbs[1] = rgb2;
+					rgbs[2] = rgb3;
+					Java101ImageUtil.showViewer(rgbs,title);
+					break;
+				default:
+					System.out.println("Bad choice. Bye bye");
+			}
+		} while (choice != 'q' && choice != 'Q');
+	}
+
+	public static int [][][] flipVertical(int [][][] rgb){
+		int w = rgb.length;
+		int h = rgb[0].length;
+		int [][][] newRgb = new int[w][h][3];
+		for(int i=0;i<w;i++){
+			for(int j=0;j<h;j++){
+				for(int channel=0;channel<3;channel++){
+					newRgb[i][j][channel] = rgb[i][(h-1)-j][channel];
+				}
+			}
+		}
+		return newRgb;
+	}
+	public static int [][][] genAllRed(int w,int h){
+		int [][][] rgb = new int[w][h][3];
+		for(int i=0;i<w;i++){
+			for(int j=0;j<h;j++){
+				rgb[i][j][0] = 255;
+			}
+		}
+		return rgb;
+	}
+	private static String genChoiceMenu(){
+		String menu = "";
+		menu = menu.concat("Pick how to show the images\n");
+		menu = menu.concat("------------------------------------------------------------\n");
+		menu = menu.concat("1 : Show only the loaded file\n");
+		menu = menu.concat("2 : Show the loaded file + its flipped version\n");
+		menu = menu.concat("3 : Show both + a red patch\n");
+		menu = menu.concat("------------------------------------------------------------\n");
+		menu = menu.concat(">>");
+		return menu;
+	}
+	private static char getUserChoice(String menu){
+		System.out.print(menu);
+		Scanner kb = new Scanner(System.in);
+		return kb.next().charAt(0);
+	}
+}