001/* 002Copyright 2006 Jerry Huxtable 003 004Licensed under the Apache License, Version 2.0 (the "License"); 005you may not use this file except in compliance with the License. 006You may obtain a copy of the License at 007 008 http://www.apache.org/licenses/LICENSE-2.0 009 010Unless required by applicable law or agreed to in writing, software 011distributed under the License is distributed on an "AS IS" BASIS, 012WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013See the License for the specific language governing permissions and 014limitations under the License. 015*/ 016 017package com.jhlabs.image; 018 019import java.awt.image.*; 020 021/** 022 * A filter which averages the 3x3 neighbourhood of each pixel, providing a simple blur. 023 */ 024public class AverageFilter extends ConvolveFilter { 025 026 /** 027 * The convolution kernal for the averaging. 028 */ 029 protected static float[] theMatrix = { 0.1f, 0.1f, 0.1f, 0.1f, 0.2f, 0.1f, 0.1f, 0.1f, 0.1f }; 030 031 public AverageFilter() { 032 super( theMatrix ); 033 } 034 035 public String toString() { 036 return "Blur/Average Blur"; 037 } 038}