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| 1 | +// Graphics Panel |
| 2 | + |
| 3 | +// Written by: Mason Zhu |
| 4 | +// Date: May 17, 2024 |
| 5 | +// Description: Graphic Panel of imageEditor |
| 6 | +import java.awt.Color; |
| 7 | +import java.awt.Dimension; |
| 8 | +import java.awt.Graphics; |
| 9 | +import java.awt.Graphics2D; |
| 10 | +import java.awt.event.KeyEvent; |
| 11 | +import java.awt.image.BufferedImage; |
| 12 | +import java.awt.image.Raster; |
| 13 | +import java.awt.image.WritableRaster; |
| 14 | +import java.io.File; |
| 15 | +import java.io.IOException; |
| 16 | +import java.util.Scanner; |
| 17 | + |
| 18 | +import javax.imageio.ImageIO; |
| 19 | +import javax.swing.ImageIcon; |
| 20 | +import javax.swing.JPanel; |
| 21 | +import java.awt.event.KeyEvent; |
| 22 | +import java.awt.event.KeyListener; |
| 23 | + |
| 24 | +public class GraphicsPanel extends JPanel implements KeyListener{ |
| 25 | + |
| 26 | + private BufferedImage image; |
| 27 | + private BufferedImage modifiedImage; |
| 28 | + private String imageName; |
| 29 | + |
| 30 | + final int PIX_SIZE = 10; |
| 31 | + |
| 32 | + |
| 33 | + // method: GraphicsPanel Constructor |
| 34 | + // description: This 'method' runs when a new instance of this class in instantiated. It sets default values |
| 35 | + // that are necessary to run this project. You do not need to edit this method. |
| 36 | + public GraphicsPanel(String imageName) throws IOException{ |
| 37 | + this.imageName = imageName; |
| 38 | + |
| 39 | + //establish File |
| 40 | + File file = new File("src/"+imageName+".jpg"); //enter your picture here |
| 41 | + |
| 42 | + //read into BufferedImage |
| 43 | + image = ImageIO.read(file); |
| 44 | + setPreferredSize(new Dimension(image.getWidth() * 2, image.getHeight())); |
| 45 | + |
| 46 | + modifiedImage = ImageIO.read(file); |
| 47 | + |
| 48 | + //investigate how pixels are represented numerically |
| 49 | + System.out.println(image.getRGB(50,50)); //prints the decimal representation of the pixel at position 50,50 |
| 50 | + System.out.println(Integer.toHexString(image.getRGB(50,50))); //prints the hexadecimal representation of the pixel at position 50,50 |
| 51 | + System.out.printf("%x \n",image.getRGB(50,50)); //another way to print hexadecimal represenation |
| 52 | + |
| 53 | + |
| 54 | + // modifyPicture(); |
| 55 | + |
| 56 | + //write to file |
| 57 | + ImageIO.write(image, "jpg",new File("new.jpg")); |
| 58 | + this.setFocusable(true); // for keylistener |
| 59 | + this.addKeyListener(this); |
| 60 | + |
| 61 | + } |
| 62 | + |
| 63 | + public void modifyPicture() { |
| 64 | + for(int i = 0; i < modifiedImage.getHeight(); i++) |
| 65 | + for(int j = 0; j < modifiedImage.getWidth(); j++) |
| 66 | + if (modifiedImage.getRGB(j, i) < 20) { |
| 67 | + modifiedImage.setRGB(j, i, ~modifiedImage.getRGB(j, i) + 200); |
| 68 | + } |
| 69 | + else { |
| 70 | + modifiedImage.setRGB(j, i, modifiedImage.getRGB(j, i) + 10); |
| 71 | + } |
| 72 | + // this line set RGB |
| 73 | + } |
| 74 | + |
| 75 | + public void invertImage() { |
| 76 | + for(int i = 0; i < modifiedImage.getHeight(); i++) |
| 77 | + for(int j = 0; j < modifiedImage.getWidth(); j++) |
| 78 | + modifiedImage.setRGB(j, i, ~modifiedImage.getRGB(j, i)); |
| 79 | + // this line set RGB |
| 80 | + } |
| 81 | + |
| 82 | + public void makeGray() { |
| 83 | + for(int i = 0; i < modifiedImage.getHeight(); i++) { |
| 84 | + for(int j = 0; j < modifiedImage.getWidth(); j++) { |
| 85 | + Color c = new Color(modifiedImage.getRGB(j, i)); |
| 86 | + System.out.println(modifiedImage.getRGB(j, i) + ""); |
| 87 | + int green = c.getGreen(); |
| 88 | + int red = c.getRed(); |
| 89 | + int blue = c.getBlue(); |
| 90 | + int gray = (green + blue + red)/3; |
| 91 | + Color g = new Color( gray, gray, gray); |
| 92 | + modifiedImage.setRGB(j, i, g.getRGB()); |
| 93 | + } |
| 94 | + } |
| 95 | + } |
| 96 | + |
| 97 | + public void invertRed() { |
| 98 | + for(int i = 0; i < modifiedImage.getHeight(); i++) { |
| 99 | + for(int j = 0; j < modifiedImage.getWidth(); j++) { |
| 100 | + Color c = new Color(image.getRGB(j, i)); |
| 101 | + int green = c.getGreen(); |
| 102 | + int red = c.getRed(); |
| 103 | + int blue = c.getBlue(); |
| 104 | + int rgb = ((green << 8) + blue + (~red<<16)); |
| 105 | + |
| 106 | + modifiedImage.setRGB(j, i, rgb); |
| 107 | + } |
| 108 | + } |
| 109 | + } |
| 110 | + public void makePixelated(int pixelSize) { // Use pixelSize for clarity |
| 111 | + |
| 112 | + for (int i = 0; i < modifiedImage.getHeight(); i += pixelSize) { |
| 113 | + for (int j = 0; j < modifiedImage.getWidth(); j += pixelSize) { |
| 114 | + Color c = new Color(image.getRGB(j, i)); |
| 115 | + |
| 116 | + |
| 117 | + int red = 0; |
| 118 | + int green = 0; |
| 119 | + int blue = 0; |
| 120 | + |
| 121 | + for (int a = i; a < i + pixelSize && a < modifiedImage.getHeight(); a++) { |
| 122 | + for (int b = j; b < j + pixelSize && b < modifiedImage.getWidth(); b++) { |
| 123 | + Color innerColor = new Color(image.getRGB(b, a)); |
| 124 | + red += innerColor.getRed(); |
| 125 | + green += innerColor.getGreen(); |
| 126 | + blue += innerColor.getBlue(); |
| 127 | + } |
| 128 | + } |
| 129 | + |
| 130 | + // calculate average rgb stuff |
| 131 | + int numPixels = Math.min(pixelSize * pixelSize, (modifiedImage.getWidth() - j) * (modifiedImage.getHeight() - i)); |
| 132 | + red /= numPixels; |
| 133 | + green /= numPixels; |
| 134 | + blue /= numPixels; |
| 135 | + |
| 136 | + // set everything in to that color |
| 137 | + for (int a = i; a < i + pixelSize && a < modifiedImage.getHeight(); a++) { |
| 138 | + for (int b = j; b < j + pixelSize && b < modifiedImage.getWidth(); b++) { |
| 139 | + modifiedImage.setRGB(b, a, new Color(red, green, blue).getRGB()); |
| 140 | + } |
| 141 | + } |
| 142 | + } |
| 143 | + } |
| 144 | + } |
| 145 | + |
| 146 | + public void reset() throws IOException { |
| 147 | + File file = new File("src/"+imageName+".jpg"); |
| 148 | + modifiedImage = ImageIO.read(file); |
| 149 | + |
| 150 | + } |
| 151 | + |
| 152 | + |
| 153 | + public void keyPressed(KeyEvent e) { |
| 154 | + if (e.getKeyCode() == KeyEvent.VK_1) { // invert red |
| 155 | + invertRed(); |
| 156 | + repaint(); |
| 157 | + } |
| 158 | + |
| 159 | + else if(e.getKeyCode() == KeyEvent.VK_2) { // monochrome |
| 160 | + makeGray(); |
| 161 | + repaint(); |
| 162 | + } |
| 163 | + |
| 164 | + else if (e.getKeyCode() == KeyEvent.VK_3) { // invert image |
| 165 | + invertImage(); |
| 166 | + repaint(); |
| 167 | + } |
| 168 | + |
| 169 | + else if (e.getKeyCode() == KeyEvent.VK_4) { // pixelated |
| 170 | + makePixelated(10); |
| 171 | + repaint(); |
| 172 | + } |
| 173 | + |
| 174 | + else if (e.getKeyCode() == KeyEvent.VK_0) { // reset |
| 175 | + try { |
| 176 | + reset(); |
| 177 | + } catch (IOException e1) { |
| 178 | + // TODO Auto-generated catch block |
| 179 | + e1.printStackTrace(); |
| 180 | + } |
| 181 | + repaint(); |
| 182 | + } |
| 183 | + } |
| 184 | + |
| 185 | + |
| 186 | + |
| 187 | + |
| 188 | + |
| 189 | + |
| 190 | + |
| 191 | + |
| 192 | + |
| 193 | + |
| 194 | + |
| 195 | + |
| 196 | + // method: paintComponent |
| 197 | + // description: This method is called when the Panel is painted. It contains code that draws shapes onto the panel. |
| 198 | + // parameters: Graphics g - this object is used to draw shapes onto the JPanel. |
| 199 | + // return: void |
| 200 | + public void paintComponent(Graphics g){ |
| 201 | + Graphics2D g2 = (Graphics2D) g; |
| 202 | + |
| 203 | + //ImageIcon imageIcon = new ImageIcon(image); |
| 204 | + |
| 205 | + new ImageIcon(image).paintIcon(this, g2, 0, 0); |
| 206 | + new ImageIcon(modifiedImage).paintIcon(this, g2, image.getWidth() + 1, 0); |
| 207 | + |
| 208 | + } |
| 209 | + |
| 210 | + @Override |
| 211 | + public void keyTyped(KeyEvent e) { |
| 212 | + // TODO Auto-generated method stub |
| 213 | + |
| 214 | + } |
| 215 | + |
| 216 | + @Override |
| 217 | + public void keyReleased(KeyEvent e) { |
| 218 | + // TODO Auto-generated method stub |
| 219 | + |
| 220 | + } |
| 221 | + |
| 222 | +} |
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