MainClass.java Source code

Introduction

Here is the source code for MainClass.java

Source

import java.awt.Color;
import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;

public class MainClass {
    public static void main(String[] args) throws Exception {
        byte ff = (byte) 0xff;
        byte[] r = { ff, 0, 0, ff, 0 };
        byte[] g = { 0, ff, 0, ff, 0 };
        byte[] b = { 0, 0, ff, ff, 0 };

        ColorModel cm = new IndexColorModel(3, 5, r, g, b);

        Color[] colors = { new Color(255, 0, 0), new Color(0, 255, 0), new Color(0, 0, 255) };

        for (int i = 0; i < colors.length; i++) {
            int rgb = colors[i].getRGB();
            Object pixel = cm.getDataElements(rgb, null);
            System.out.println(colors[i] + " -> " + ((byte[]) pixel)[0]);
        }

        for (byte i = 0; i < 5; i++) {
            int[] unnormalizedComponents = cm.getComponents(i, null, 0);
            System.out.print(i + " -> unnormalized components");
            for (int j = 0; j < unnormalizedComponents.length; j++)
                System.out.print(" " + unnormalizedComponents[j]);
            System.out.println();
        }
    }
}