it.tidalwave.imageio.rawprocessor.raw.DemosaicOperation Maven / Gradle / Ivy

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/***********************************************************************************************************************
 *
 * jrawio - a Java(TM) Image I/O SPI Provider for Camera Raw files
 * Copyright (C) 2003-2011 by Tidalwave s.a.s.
 *
 ***********************************************************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 *
 ***********************************************************************************************************************
 *
 * WWW: http://jrawio.rawdarkroom.org
 * SCM: https://kenai.com/hg/jrawio~src
 *
 **********************************************************************************************************************/
package it.tidalwave.imageio.rawprocessor.raw;

import it.tidalwave.imageio.raw.Source;
import it.tidalwave.imageio.util.Logger;
import it.tidalwave.imageio.rawprocessor.PipelineArtifact;
import it.tidalwave.imageio.rawprocessor.Curve;
import it.tidalwave.imageio.rawprocessor.OperationSupport;
import it.tidalwave.imageio.rawprocessor.demosaic.DemosaicFilterProcessor;

/***********************************************************************************************************************
 *
 * @author  Fabrizio Giudici
 * @version $Id: DemosaicOperation.java,v 89379a3cf877 2011/02/28 23:54:05 fabrizio $
 *
 **********************************************************************************************************************/
public class DemosaicOperation extends OperationSupport
  {
    private final static Logger logger = getLogger(DemosaicOperation.class);

    protected String algorithm;

    protected DemosaicFilterProcessor processor;

    private int[] cfaPattern;

    private String cfaPatternAsString;

    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    public DemosaicOperation()
      {
        super(Source.Type.RAW);
      }

    /*******************************************************************************************************************
     *
     * @inheritDoc
     *
     ******************************************************************************************************************/
    public void process (PipelineArtifact artifact) throws Exception
      {
        logger.fine("process()");
        cfaPattern = artifact.getCFAPattern();
        String cfaPatternAsString = artifact.getCFAPatternAsString();
        algorithm = chooseDemosaicAlgorithm(cfaPatternAsString);
        double redCoeff = artifact.getRedCoefficient();
        double greenCoeff = artifact.getGreenCoefficient();
        double blueCoeff = artifact.getBlueCoefficient();
        double blackLevel = artifact.getBlackLevel();
        Curve curve = artifact.getCurve();
        processor = new DemosaicFilterProcessor(cfaPatternAsString, algorithm, redCoeff, greenCoeff, blueCoeff, blackLevel, curve);
        logger.finer("Bayer pattern: %s", cfaPatternAsString);
        processor.process(artifact.getImage());
      }    
    
    /*******************************************************************************************************************
     * 
     * Chooses the demosaic algorithm. Can be overridden if a particular RAW format
     * processor wants to make it own selection.
     * 
     * @return
     * 
     *******************************************************************************/
    protected String chooseDemosaicAlgorithm (String cfaPatternAsString)
      {
        if (!cfaPatternAsString.equals("GRBG")) // FIXME: PixelGrouping does not work yet with other patterns
          {
            return "Bilinear";
          }

        return "PixelGrouping";
      }
  }