Application: gvSIG desktop » gvSIG raster

/* gvSIG. Geographic Information System of the Valencian Government

 *

 * Copyright (C) 2007-2008 Infrastructures and Transports Department

 * of the Valencian Government (CIT)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 */

package org.gvsig.raster.impl.grid.filter.band;

import org.gvsig.fmap.dal.coverage.dataset.Buffer;

/**

 * Filtro de conversi?n de datos RGB a HSL para tipo de datos byte.

 *

 * @author Nacho Brodin (nachobrodin@gmail.com)

 */

public class RGBToHSLByteFilter extends RGBToHSLFilter {

        public void process(int col, int line) {

                byte[] value = new byte[4];

                value[0] = raster.getElemByte(line, col, redBandNumber);

                value[1] = raster.getElemByte(line, col, greenBandNumber);

                value[2] = raster.getElemByte(line, col, blueBandNumber);

                value[3] = (byte)255;

                double[] hsl = colorConversion.RGBtoHSL(value[0] & 0xff, value[1] & 0xff, value[2] & 0xff);

                if(out == Buffer.TYPE_BYTE) {

                        hsl[0] = (int)(255.0 * hsl[0] / 360.0 + 0.5);

                        hsl[2] = (int) (hsl[2] * 255. + 0.5);

                        hsl[1] = (int) (hsl[1] * 255. + 0.5);

                        for (int band = 0; band < 3; band++)

                                value[band] = (byte)(((byte)hsl[band]) & 0xff);

                        rasterResult.setElemByte(line, col, value);

                } else if(out == Buffer.TYPE_DOUBLE) 

                        rasterResult.setElemDouble(line, col, hsl);

                writeAlphaBand(line, col);

        }

}