Application: gvSIG desktop » gvSIG tools: ToolBox

/*******************************************************************************

CTVIAlgorithm.java

Copyright (C) Victor Olaya

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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *******************************************************************************/

package es.unex.sextante.vegetationIndices.ctvi;

import es.unex.sextante.vegetationIndices.base.SlopeBasedAlgorithm;

public class CTVIAlgorithm

         extends

            SlopeBasedAlgorithm {

   @Override

   public void defineCharacteristics() {

      super.defineCharacteristics();

      setName("CTVI");

   }

   @Override

   protected double getIndex(final double dRed,

                             final double dNIR) {

      final double dNDVI = getNDVI(dRed, dNIR);

      return (dNDVI + 0.5) / Math.abs(dNDVI + 0.5) * Math.sqrt(Math.abs(dNDVI + 0.5));

   }

}