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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana

*

* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.

*

* 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 2

* 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, write to the Free Software

* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.

*/

package org.cresques.filter.convolution;

import java.awt.Image;

import org.cresques.filter.RasterFilter;

import org.cresques.io.data.RasterBuf;

import org.gvsig.i18n.Messages;

/**

 * Clase base para los filtros de convoluci?n.

 * 

 * @author Diego Guerrero Sevilla  <diego.guerrero@uclm.es>

 *

 */

public abstract class ConvolutionFilter extends RasterFilter {

        protected Kernel kernel = null;

        protected int umbral = 0;

        protected Image  imageResult = null;

        protected RasterBuf rasterResult = null;

        public ConvolutionFilter() {

                super();

                // TODO Auto-generated constructor stub

        }

        /**

         * Constructor para la asignaci?n del identificador del filtro

         * @param fName Cadena que representa el identificador del filtro 

         */

        public ConvolutionFilter(String fName) {

                super();

                super.filterName = fName;

        }

        public void post() {

                // TODO Auto-generated method stub        

        }

        public void pre() {

                kernel = (Kernel) params.get("kernel");

                if (params.get("umbral")!=null)

                        umbral = ((Integer)params.get("umbral")).intValue();

                else this.umbral = 0;

        }

        /**

         * Obtiene el kernel

         * @return kernel asociado al filtro

         */

        public Kernel getKernel() {

                return kernel;

        }

}