Java tutorial
//package com.java2s; /***************************************************************************** ** ANGRYBIRDS AI AGENT FRAMEWORK ** 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.*; import java.awt.image.*; public class Main { public static BufferedImage convert2grey(BufferedImage image) { BufferedImage grey = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY); Graphics g = grey.getGraphics(); g.drawImage(image, 0, 0, null); g.dispose(); BufferedImage rgb = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_INT_RGB); g = rgb.getGraphics(); g.drawImage(grey, 0, 0, null); g.dispose(); return rgb; } }