HueChanger.java | Change hue of images

// @author Abdul Fatir
// Email : [email protected]
import java.io.*;
import javax.imageio.*;
import java.awt.*;
import java.awt.image.*;
import static java.lang.System.out;
public class HueChanger
{
    public static void main(String args[])throws IOException
    {
    BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

    int iHUE=0;
    do
    {
        out.print("Hue (0-360):");
        iHUE = Integer.parseInt(reader.readLine());
        if(iHUE > 360 || iHUE < 0)
            {
            out.println("Please enter a hue value between 0-360.");
            }
    }
    while((iHUE > 360 || iHUE < 0));
    float hue = iHUE/360.0f;

    BufferedImage raw,processed;
    raw = ImageIO.read(new File("raw.png"));
    int WIDTH = raw.getWidth();
    int HEIGHT = raw.getHeight();
    processed = new BufferedImage(WIDTH,HEIGHT,raw.getType());

    for(int Y=0; Y<HEIGHT;Y++)
    {
        for(int X=0;X<WIDTH;X++)
        {
            int RGB = raw.getRGB(X,Y);
            int R = (RGB >> 16) & 0xff;
            int G = (RGB >> 8) & 0xff;
            int B = (RGB) & 0xff;
            float HSV[]=new float[3];
            Color.RGBtoHSB(R,G,B,HSV);
            processed.setRGB(X,Y,Color.getHSBColor(hue,HSV[1],HSV[2]).getRGB());
        }
    }
    ImageIO.write(processed,"PNG",new File("processed.png"));
    }
}