Here you can find the source of filter(BufferedImage image, BufferedImageOp op)
public static BufferedImage filter(BufferedImage image, BufferedImageOp op)
//package com.java2s; /*//from w w w . j a v a 2 s .co m * Copyright (C) 2012 daniel * * This program 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 3 of the License, or * (at your option) any later version. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ import java.awt.image.*; public class Main { public static BufferedImage filter(BufferedImage image, BufferedImageOp op) { BufferedImage result = new BufferedImage(image.getWidth(), image.getHeight(), image.getType()); op.filter(image, result); return result; } }