svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / enhancement / BrightnessByteFilter.java @ 11841
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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.enhancement; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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/**
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* Filtro de brillo para buffer de datos tipo byte. En el m?todo de proceso
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* procesa un solo pixel byte e incrementa su brillo en la cantidad indicada en
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* la variable incrBrillo.
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*
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* @author Miguel ?ngel Querol Carratal? (miguelangel.querol@iver.es)
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*
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*/
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public class BrightnessByteFilter extends BrightnessFilter{ |
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/**
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* Constructor. LLama al constructor base de los filtros de
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* brillo.
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*/
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public BrightnessByteFilter(){
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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.enhancement.BrightnessFilter#pre()
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*/
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public void pre(){ |
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exec = true;
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this.raster = (RasterBuffer) params.get("raster"); |
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height = raster.getHeight(); |
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width = raster.getWidth(); |
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this.incrBrillo = ((Integer) params.get("incrBrillo")).intValue(); |
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super.pre();
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.filter.IRasterFilter#process(int, int)
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*/
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public void process(int col, int line) { |
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for (int i = 0; i < raster.getBandCount(); i++) { |
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int p = (raster.getElemByte(line, col, i) & 0x000000ff); |
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p += incrBrillo; |
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if (p > 255) |
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p = 255;
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else if (p < 0) |
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p = 0;
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raster.setElem(line, col, i, (byte) p);
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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.fmap.grid.filter.IRasterFilter#getInRasterDataType()
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*/
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public int getInRasterDataType() { |
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return RasterBuffer.TYPE_BYTE;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.filter.IRasterFilter#getOutRasterDataType()
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*/
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public int getOutRasterDataType() { |
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return RasterBuffer.TYPE_BYTE;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.grid.filter.IRasterFilter#getResult(java.lang.String)
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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 null; |
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} |
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} |
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} |