Blend two colors : Color « 2D Graphics GUI « Java

1. Java
2. 2D Graphics GUI
3. Color

Blend two colors

   
/**
 * ColorUtilities.java
 */
//package edu.belmont.mth.visigraph.utilities;

import java.awt.Color;

/**
 * @author Cameron Behar
 */
public class ColorUtilities {
  public static Color blend(Color c0, Color c1) {
    double totalAlpha = c0.getAlpha() + c1.getAlpha();
    double weight0 = c0.getAlpha() / totalAlpha;
    double weight1 = c1.getAlpha() / totalAlpha;

    double r = weight0 * c0.getRed() + weight1 * c1.getRed();
    double g = weight0 * c0.getGreen() + weight1 * c1.getGreen();
    double b = weight0 * c0.getBlue() + weight1 * c1.getBlue();
    double a = Math.max(c0.getAlpha(), c1.getAlpha());

    return new Color((int) r, (int) g, (int) b, (int) a);
  }
}

   
    
    
  

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