root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / correction / ModeDoubleFilter.java @ 27361
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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) 2004 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.correction; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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/**
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* Proceso que aplica el filtro de Moda a un raster de tipo double
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*
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* 23/07/2008
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* @author Nacho Brodin nachobrodin@gmail.com
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*/
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public class ModeDoubleFilter extends ModeFilter { |
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private double[] window = null; |
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private double tempValue = 0; |
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public ModeDoubleFilter() {
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super();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.grid.filter.correction.MedianFilter#pre()
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*/
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public void pre() { |
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super.pre();
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window = new double[sizeWindow]; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.grid.filter.correction.MedianFilter#process(int, int)
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*/
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public void process(int col, int line) throws InterruptedException { |
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for (int band = 0; band < raster.getBandCount(); band++) { |
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int k = 0; |
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count = 0;
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for (int i = -halfSide; i <= halfSide; i++) { |
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for (int j = -halfSide; j <= halfSide; j++) { |
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if ((col + i >= 0) && (line + j >= 0) && (col + i < width) && (line + j < height)) { |
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window[k] = raster.getElemDouble(line + j, col + i, band); |
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if(i == -halfSide && j == -halfSide)
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tempValue = window[k]; |
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if(tempValue == window[k])
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count ++; |
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k++; |
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} |
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} |
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} |
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if(count > sizeWindow)
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return;
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k = 1;
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while(k < window.length) {
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int auxCount = 0; |
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for (int i = k; i < window.length; i++) { |
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if(window[i] == window[k])
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auxCount ++; |
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} |
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if(auxCount > count) {
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count = auxCount; |
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tempValue = window[k]; |
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if(count > sizeWindow)
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return;
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} |
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k++; |
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} |
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rasterResult.setElem(line, col, band, (double) tempValue);
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} |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.grid.filter.correction.MedianFilter#getInRasterDataType()
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*/
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public int getInRasterDataType() { |
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return RasterBuffer.TYPE_DOUBLE;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.grid.filter.RasterFilter#getOutRasterDataType()
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*/
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public int getOutRasterDataType() { |
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return RasterBuffer.TYPE_DOUBLE;
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} |
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} |