svn-gvsig-desktop / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / enhancement / LinearEnhancementShortFilter.java @ 11067
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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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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* cresques@gmail.com
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*/
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package org.gvsig.raster.grid.filter.enhancement; |
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import org.gvsig.raster.dataset.IBuffer; |
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/**
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* Realzado Lineal (Amplitude Rescaling) para imagenes de 16 bits.
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* @author Luis W. Sevilla (sevilla_lui@gva.es)
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class LinearEnhancementShortFilter extends LinearEnhancementFilter { |
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/**
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* Constructor
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*/
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public LinearEnhancementShortFilter() {
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super();
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.IRasterFilter#pre()
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*/
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public void pre() { |
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super.pre();
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} |
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/* (non-Javadoc)
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* @see org.cresques.io.raster.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 iBand = 0; iBand < nbands; iBand ++) { |
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short p = raster.getElemShort(line, col, iBand);
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if (p > maxBandValue[iBand])
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p = (short)maxBandValue[iBand];
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else if (p < minBandValue[iBand]) |
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p = (short)minBandValue[iBand];
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p = (short)(((short) ((((double) p) * scale[iBand]) + offset[iBand])) & 0xff); |
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rasterResult.setElem(line, col, iBand, (byte)p);
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} |
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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_SHORT;
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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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} |
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} |