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import java.awt.Color;
import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;
public class Main {
public static void main(String[] args) {
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), new Color(64, 255, 64),
new Color(255, 255, 0), new Color(0, 255, 255) };
for (int i = 0; i < colors.length; i++) {
float[] normalizedComponents = colors[i].getComponents(null);
int[] unnormalizedComponents = cm.getUnnormalizedComponents(
normalizedComponents, 0, null, 0);
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();
}
}
}
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