Detection de couleur

import java.awt.Color;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

import javax.imageio.ImageIO;

public class Test
{
    public static void main(String[] args) throws IOException
    {
        BufferedImage img = ImageIO.read(new File("image.png"));
        
        for (int y=0; y<img.getHeight(); y++)
        for (int x=0; x<img.getWidth(); x++)
        {
            int rgb = img.getRGB(x, y);
            Color color = new Color(rgb);
        }
    }
}