تبدیل سپیا رنگ در جاوا (پردازش تصویر)

public class Sepia {

     public static void main(String args[]) throws IOException {

          BufferedImage img = null;

          File f = null;

          System.out.println("Reading Image...");

          // read image

          try {

              f = new File("baboon.png");

              img = ImageIO.read(f);

          } catch (IOException e) {

              System.out.println(e);

          }



          // get width and height of the image

          int width = img.getWidth();

          int height = img.getHeight();

          System.out.println("converting to sepia Image...");

          // convert to sepia

          for (int y = 0; y < height; y++) {

              for (int x = 0; x < width; x++) {

                   int p = img.getRGB(x, y);

                  

                Color col = new Color(p, true);        



                   int a = col.getAlpha();

                   int R = col.getRed();

                   int G = col.getGreen();

                   int B = col.getBlue();



                   // calculate newRed, newGreen, newBlue

                   int newRed = (int) (0.393 * R + 0.769 * G + 0.189 * B);

                   int newGreen = (int) (0.349 * R + 0.686 * G + 0.168 * B);

                   int newBlue = (int) (0.272 * R + 0.534 * G + 0.131 * B);



                   // check condition

                   if (newRed > 255)

                        R = 255;

                   else

                        R = newRed;



                   if (newGreen > 255)

                        G = 255;

                   else

                        G = newGreen;



                    if (newBlue > 255)

                        B = 255;

                   else

                        B = newBlue;



                   // set new RGB value

                   col = new Color(R, G, B);  



                   img.setRGB(x, y, col.getRGB());

              }

          }



          // write image

          System.out.println("Creating new image...");

          try {

              f = new File("sepiababoon.jpg");

              ImageIO.write(img, "jpg", f);

          } catch (IOException e) {

              System.out.println(e);

          }

          System.out.println("Finishing...");

     }

}