Java BufferedImage Compare imageDifference(BufferedImage imgA, BufferedImage imgB)

Description

image Difference

License

Open Source License

Declaration

public static int imageDifference(BufferedImage imgA, BufferedImage imgB) 

Method Source Code

//package com.java2s;
/*****************************************************************************
 ** ANGRYBIRDS AI AGENT FRAMEWORK/*from   w w w. j  av a 2  s. c o  m*/
 ** Copyright (c) 2013,XiaoYu (Gary) Ge, Stephen Gould,Jochen Renz
 **  Sahan Abeyasinghe, Jim Keys, Kar-Wai Lim, Zain Mubashir,  Andrew Wang, Peng Zhang
 ** All rights reserved.
 **This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. 
 **To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/ 
 *or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA.
 *****************************************************************************/

import java.awt.image.*;

public class Main {
    public static int imageDifference(BufferedImage imgA, BufferedImage imgB) {

        int dHeight = Math.abs(imgA.getHeight() - imgB.getHeight());
        int dWidth = Math.abs(imgA.getWidth() - imgB.getWidth());

        int diff = 3 * 255 * dHeight * dWidth;
        for (int y = 0; y < Math.min(imgA.getHeight(), imgB.getHeight()); y++) {
            for (int x = 0; x < Math.min(imgA.getWidth(), imgB.getWidth()); x++) {
                final int colourA = imgA.getRGB(x, y);
                final int colourB = imgB.getRGB(x, y);

                diff += Math.abs((int) ((colourA & 0x00ff0000) >> 16)
                        - (int) ((colourB & 0x00ff0000) >> 16));
                diff += Math.abs((int) ((colourA & 0x0000ff00) >> 8)
                        - (int) ((colourB & 0x0000ff00) >> 8));
                diff += Math.abs((int) (colourA & 0x000000ff)
                        - (int) (colourB & 0x000000ff));
            }
        }

        return diff;
    }
}

Related

1. compareImages(BufferedImage imageOne, BufferedImage imageTwo)
2. compareImages(BufferedImage imgA, BufferedImage imgB)
3. compareImages(final BufferedImage firstImage, final BufferedImage secondImage)
4. compareImages(final BufferedImage img1, final BufferedImage img2)
5. compareImgToFile(BufferedImage img, File file)