ColorUtils.java

package edu.harvard.mcb.leschziner.util;

import java.awt.Color;

public class ColorUtils {
    public static final int WHITE = Color.WHITE.getRGB();
    public static final int BLACK = Color.BLACK.getRGB();

    public static int extractRed(int target) {
        // Protected against ARGB data
        return (target >> 16) & 0xFF;
    }

    public static int extractGreen(int target) {
        return (target >> 8) & 0xFF;
    }

    public static int extractBlue(int target) {
        return target & 0xFF;
    }

    public static int[] extractRed(int[] target) {
        int[] extracted = new int[target.length];
        for (int i = 0; i < target.length; i++) {
            extracted[i] = extractRed(target[i]);
        }
        return extracted;
    }

    public static int[] extractBlue(int[] target) {
        int[] extracted = new int[target.length];
        for (int i = 0; i < target.length; i++) {
            extracted[i] = extractBlue(target[i]);
        }
        return extracted;
    }

    public static int[] extractGreen(int[] target) {
        int[] extracted = new int[target.length];
        for (int i = 0; i < target.length; i++) {
            extracted[i] = extractGreen(target[i]);
        }
        return extracted;
    }

    public static int[][] extractRed(int[][] target) {
        int[][] extracted = new int[target.length][target[0].length];
        for (int i = 0; i < target.length; i++) {
            extracted[i] = extractRed(target[i]);
        }
        return extracted;
    }

    public static int[][] extractBlue(int[][] target) {
        int[][] extracted = new int[target.length][target[0].length];
        for (int i = 0; i < target.length; i++) {
            extracted[i] = extractBlue(target[i]);
        }
        return extracted;
    }

    public static int[][] extractGreen(int[][] target) {
        int[][] extracted = new int[target.length][target[0].length];
        for (int i = 0; i < target.length; i++) {
            extracted[i] = extractGreen(target[i]);
        }
        return extracted;
    }

    public static int buildColor(int red, int green, int blue) {
        return new Color(red, green, blue).getRGB();
    }

}