svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / statistics / TailTrimByteFilter.java @ 11714
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2006 IVER T.I. 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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package org.gvsig.raster.grid.filter.statistics; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.Params; |
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/**
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* Proceso del filtro de recorte de colas aplicado al tipo de datos byte
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*
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*/
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public class TailTrimByteFilter extends TailTrimFilter { |
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/**
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* Array con el resultado. La primera dimensi?n es el n?mero de bandas y la segunda son dos elementos
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* el m?ximo y el m?nimo para esa banda.
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*/
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private double[][] result = null; |
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public TailTrimByteFilter() {
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} |
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/**
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* Obtiene par?metros para el filtro y obtiene el ancho y alto de
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* la imagen sobre la que se aplica el filtro
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*/
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public void pre() { |
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super.pre();
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sample = new int[raster.getBandCount()][nSamples]; |
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result = new double[raster.getBandCount()][2]; |
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} |
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/**
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* Carga sobre el vector de muestras los valores de estas cogidos
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* de la imagen
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*/
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public void process(int col, int line) { |
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for(int iBand = 0 ; iBand < raster.getBandCount() ; iBand ++) |
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sample[iBand][count] = raster.getElemByte(line, col, iBand); |
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count++; |
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getInRasterDataType()
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*/
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public int getInRasterDataType() { |
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return IBuffer.TYPE_BYTE;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#getOutRasterDataType()
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*/
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public int getOutRasterDataType() { |
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return IBuffer.TYPE_BYTE;
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#post()
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*/
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public void post() { |
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super.post();
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//Ordenamos los elementos y cogemos el minimo y m?ximo para cada banda
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for (int i = 0; i < raster.getBandCount(); i++) { |
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result[i][0] = sample[i][posInit + tailSize];
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result[i][1] = sample[i][(posInit + nSamples) - tailSize - 1]; |
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} |
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stats.setTailTrimValue(tailPercent, result); |
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} |
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/**
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* Obtiene el objeto con el m?ximo y m?nimo calculado
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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.raster; |
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else
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return result;
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} |
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} |