root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / filter / enhancement / ContrastByteFilter.java @ 12180
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| 1 | 10740 | nacho | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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| 2 | *
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| 3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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| 4 | *
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| 5 | * This program is free software; you can redistribute it and/or
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| 6 | * modify it under the terms of the GNU General Public License
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| 7 | * as published by the Free Software Foundation; either version 2
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| 8 | * of the License, or (at your option) any later version.
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| 9 | *
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| 10 | * This program is distributed in the hope that it will be useful,
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| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | * GNU General Public License for more details.
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| 14 | *
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| 15 | * You should have received a copy of the GNU General Public License
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| 16 | * along with this program; if not, write to the Free Software
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| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 18 | */
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| 19 | package org.gvsig.raster.grid.filter.enhancement; |
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| 20 | |||
| 21 | 11076 | nacho | import org.gvsig.raster.buffer.RasterBuffer; |
| 22 | 11899 | bsanchez | import org.gvsig.raster.dataset.IBuffer; |
| 23 | 10740 | nacho | /**
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| 24 | * Filtro de contraste para tipo de datos byte.
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| 25 | 12008 | bsanchez | *
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| 26 | * @author Miguel ?ngel Querol Carratal? (miguelangel.querol@iver.es)
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| 27 | 10740 | nacho | */
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| 28 | public class ContrastByteFilter extends ContrastFilter { |
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| 29 | 11574 | nacho | /**
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| 30 | * Constructor. Llama al constructor de la clase
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| 31 | * padre.
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| 32 | */
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| 33 | 12008 | bsanchez | public ContrastByteFilter() {
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| 34 | 10740 | nacho | super();
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| 35 | } |
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| 36 | |||
| 37 | 11574 | nacho | /*
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| 38 | * (non-Javadoc)
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| 39 | * @see org.gvsig.raster.grid.filter.enhancement.ContrastFilter#pre()
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| 40 | */
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| 41 | 12008 | bsanchez | public void pre() { |
| 42 | 10740 | nacho | super.pre();
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| 43 | 12008 | bsanchez | rasterResult = RasterBuffer.getBuffer(IBuffer.TYPE_BYTE, raster.getWidth(), raster.getHeight(), raster.getBandCount(), true);
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| 44 | 10740 | nacho | } |
| 45 | 11899 | bsanchez | |
| 46 | /*
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| 47 | * (non-Javadoc)
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| 48 | * @see org.gvsig.raster.grid.filter.enhancement.ContrastFilter#process(int, int)
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| 49 | */
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| 50 | 10740 | nacho | public void process(int col, int line) { |
| 51 | 11942 | bsanchez | for (int i = 0; i < raster.getBandCount(); i++) |
| 52 | rasterResult.setElem(line, col, i, |
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| 53 | (byte) calcContrast(raster.getElemByte(line, col, i) & 0xff) |
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| 54 | ); |
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| 55 | 10740 | nacho | } |
| 56 | 11942 | bsanchez | |
| 57 | 11899 | bsanchez | /*
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| 58 | * (non-Javadoc)
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| 59 | * @see org.gvsig.raster.grid.filter.enhancement.ContrastFilter#getInRasterDataType()
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| 60 | */
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| 61 | 10740 | nacho | public int getInRasterDataType() { |
| 62 | return RasterBuffer.TYPE_BYTE;
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| 63 | } |
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| 64 | |||
| 65 | 11899 | bsanchez | /*
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| 66 | * (non-Javadoc)
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| 67 | * @see org.gvsig.raster.grid.filter.enhancement.ContrastFilter#getOutRasterDataType()
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| 68 | */
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| 69 | 10740 | nacho | public int getOutRasterDataType() { |
| 70 | return RasterBuffer.TYPE_BYTE;
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| 71 | } |
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| 72 | 11899 | bsanchez | } |