root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / convolution / ConvolutionFilter.java @ 12176
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/* gvSIG. Sistema de Informaci?n Geogrfica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 Instituto de Desarrollo Regional and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Iba?ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
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* Campus Universitario s/n
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* 02071 Alabacete
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* Spain
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*
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* +34 967 599 200
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*/
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package org.gvsig.raster.grid.filter.convolution; |
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import java.util.ArrayList; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.Params; |
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import org.gvsig.raster.grid.filter.RasterFilter; |
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/**
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* Filtros de Convolucion
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* @author Diego Guerrero Sevilla <diego.guerrero@uclm.es>
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* @author Alejandro Mu?oz S?nchez < alejandro.munoz@uclm.es>
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* */
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public class ConvolutionFilter extends RasterFilter { |
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public static String[] names = new String[] {"media","paso bajo", "gauss","personalizado"}; |
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public int ladoVentana = 0; |
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protected IBuffer rasterResult = null; |
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protected Kernel kernel = null; |
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/** Tipos de filtros de convolucion */
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public static final int TYPE_MEDIA = 0; |
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public static final int TYPE_LOWPASS = 1; |
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public static final int TYPE_GAUSS = 2; |
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public static final int TYPE_OTHER = 3; |
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/**Definicion de los filtros basicos */
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double gauss3x3[][]= {{1,4,1},{4,12,4},{1,4,1}}; |
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double gauss5x5[][]= {{1,2,3,2,1},{2,7,11,7,2},{3,11,17,11,3},{2,7,11,7,2},{1,2,3,2,1}}; |
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double gauss7x7[][]= {{1,1,2,2,2,1,1},{1,2,2,4,2,2,1},{2,2,4,8,4,2,2},{2,4,8,16,8,4,2},{2,2,4,8,4,2,2},{1,2,2,4,2,2,1},{1,1,2,2,2,1,1}}; |
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double gauss7x7aux[][]= {{0,0,0.0003,0.0006,0.0003,0,0},{0,0.0011,0.0079,0.0153,0.0079,0.0011,0},{0.0003,0.0079,0.0563,0.1082,0.0563,0.0079,0.0003},{0.0006,0.0153,0.1082,0.2079,0.1082,0.0153,0.0006},{0.0003,0.0079,0.0563,0.1082,0.0563,0.0079,0.0003},{0,0.0011,0.0079,0.0153,0.0079,0.0011,0},{0,0,0.0003,0.0006,0.0003,0,0}}; |
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double lowpass3x3[][]= {{0,1,0},{1,6,1},{0,1,0}}; |
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double lowpass5x5[][]= {{1,1,1,1,1},{1,4,4,4,1},{1,4,12,4,1},{1,4,4,4,1},{1,1,1,1,1}}; |
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double media3x3[][]={{1,1,1},{1,1,1},{1,1,1}}; |
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double media5x5[][]={{1,1,1,1,1},{1,1,1,1,1},{1,1,1,1,1},{1,1,1,1,1},{1,1,1,1,1}}; |
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double media7x7[][]={{1,1,1,1,1,1,1},{1,1,1,1,1,1,1},{1,1,1,1,1,1,1},{1,1,1,1,1,1,1},{1,1,1,1,1,1,1},{1,1,1,1,1,1,1},{1,1,1,1,1,1,1}}; |
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Kernel kGauss3x3 = new Kernel(gauss3x3,34); |
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Kernel kGaus5x5 = new Kernel(gauss5x5,121); |
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Kernel kGauss7x7 = new Kernel (gauss7x7aux); |
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Kernel kLowpass3x3= new Kernel(lowpass3x3,10); |
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Kernel kLowpass5x5= new Kernel(lowpass5x5); |
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Kernel kMedia3x3=new Kernel(media3x3,9); |
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Kernel kMedia5x5= new Kernel (media5x5,25); |
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Kernel kMedia7x7= new Kernel (media7x7,49); |
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private int operator = 0; |
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/** Filtro de Convolucion*/
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public ConvolutionFilter() {
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super();
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setName(names[0]);
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} |
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public String getGroup() { |
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return "suavizado"; |
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} |
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public int getInRasterDataType() { |
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return 0; |
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} |
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public String[] getNames() { |
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return names;
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} |
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public int getOutRasterDataType() { |
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return 0; |
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} |
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public Object getResult(String name) { |
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if (name.equals("raster")) { |
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return (Object) this.rasterResult; |
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} else {
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return null; |
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} |
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} |
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public void post() { |
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// En caso de que nadie apunte a raster, se liberara su memoria.
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raster = null;
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} |
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public void pre() { |
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exec = true;
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raster = (RasterBuffer) params.get("raster");
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height = raster.getHeight(); |
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width = raster.getWidth(); |
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ladoVentana = ((Integer) params.get("ladoVentana")).intValue(); |
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if(ladoVentana==0)ladoVentana=3; |
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else if (ladoVentana==1) ladoVentana=5; |
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else ladoVentana=7; |
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String name= ((String)params.get("filterName")); |
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operator = 0;
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for (int i = 0; i < names.length; i++) { |
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if (names[i].equals(name)) {
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operator = i; |
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setName(names[i]); |
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break;
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} |
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} |
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switch (operator) {
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case TYPE_MEDIA:
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if(ladoVentana==3) |
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kernel= kMedia3x3; |
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else if(ladoVentana==5) |
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kernel=kMedia5x5; |
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else if(ladoVentana==7) |
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kernel=kMedia7x7; |
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break;
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case TYPE_GAUSS:
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// Dependiendo del tama?o de la ventana tomar un kernel u otro
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if(ladoVentana==3) |
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kernel= kGauss3x3; |
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else if(ladoVentana==5) |
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kernel=kGaus5x5; |
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else if(ladoVentana==7) |
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kernel=kGauss7x7; |
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break;
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case TYPE_LOWPASS:
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if(ladoVentana==3) |
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kernel= kLowpass3x3; |
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else if(ladoVentana==5) |
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kernel= kLowpass5x5; |
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/*else if (ladoVentana==7)
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kernel= lowpass7x7;
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*/
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break;
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case TYPE_OTHER:
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if (kernel== null) |
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// No hay kenel para operar
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break;
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} |
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} |
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public void process(int x, int y) { |
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} |
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public Params getUIParams() {
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Params params = new Params();
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params.setParam("LadoVentana",
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ladoVentana + "",
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Params.CHOICE, |
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new String[] {"3","3","5", "7"}); |
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return params;
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} |
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public Params getUIParams(String nameFilter) { |
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Params params = new Params();
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params.setParam("LadoVentana",
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ladoVentana + "",
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Params.CHOICE, |
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new String[] {"3","5","7"}); |
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params.setParam("FilterName",
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nameFilter, |
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-1,
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null);
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if (nameFilter=="personalizado" ){ |
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/*params.setParam("LadoVentana",
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ladoVentana+ "",
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Params.MATRIX,
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new String[] {"0","1","2"});*/
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/*if(ladoVentana==0){
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System.out.print("0");
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}
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if(ladoVentana==1){
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System.out.print("1");
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}
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if(ladoVentana==2){
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System.out.print("2");
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}*/
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} |
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return params;
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} |
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public ArrayList getRasterFilterList() { |
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ArrayList filters = new ArrayList(); |
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filters.add(ConvolutionFilter.class); |
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return filters;
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} |
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} |
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