Here you can find the source of invertImage(BufferedImage image)
| Parameter | Description |
|---|---|
| image | a parameter |
public static void invertImage(BufferedImage image)
//package com.java2s; /*//from w w w . j av a 2s. co m * This file is part of the LIRe project: http://www.semanticmetadata.net/lire * LIRe is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * LIRe is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with LIRe; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * We kindly ask you to refer the following paper in any publication mentioning Lire: * * Lux Mathias, Savvas A. Chatzichristofis. Lire: Lucene Image Retrieval ? * An Extensible Java CBIR Library. In proceedings of the 16th ACM International * Conference on Multimedia, pp. 1085-1088, Vancouver, Canada, 2008 * * http://doi.acm.org/10.1145/1459359.1459577 * * Copyright statement: * -------------------- * (c) 2002-2011 by Mathias Lux (mathias@juggle.at) * http://www.semanticmetadata.net/lire */ import java.awt.image.BufferedImage; import java.awt.image.WritableRaster; public class Main { /** * Inverts a grey scale image. * * @param image */ public static void invertImage(BufferedImage image) { WritableRaster inRaster = image.getRaster(); int[] p = new int[3]; float v = 0; for (int x = 0; x < inRaster.getWidth(); x++) { for (int y = 0; y < inRaster.getHeight(); y++) { inRaster.getPixel(x, y, p); p[0] = 255 - p[0]; inRaster.setPixel(x, y, p); } } } }