org.jpedal.parser.image.JPeg2000ImageDecoder Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of OpenViewerFX Show documentation
An Open Source JavaFX PDF Viewer
The newest version!
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info:  http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


*
* ---------------
* JPeg2000ImageDecoder.java
* ---------------
*/

package org.jpedal.parser.image;

import java.awt.image.*;
import java.io.ByteArrayInputStream;
import java.util.Iterator;
import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;
import org.jpedal.color.GenericColorSpace;
import org.jpedal.exception.PdfException;
import org.jpedal.objects.raw.PdfObject;
import org.jpedal.parser.image.data.ImageData;
import org.jpedal.utils.LogWriter;

/**
 *
 * @author markee
 */
public class JPeg2000ImageDecoder {
    
    
    public static BufferedImage decode(final String name, int w, int h, GenericColorSpace decodeColorData, byte[] data, final float[] decodeArray, final ImageData imageData, int d) throws RuntimeException, PdfException {
        
        
        BufferedImage image;
        
//needs imageio library
        
        if(LogWriter.isOutput()) {
            LogWriter.writeLog("JPeg 2000 Image " + name + ' ' + w + "W * " + h + 'H');
        }
        /**
         * try {
         * java.io.FileOutputStream a =new java.io.FileOutputStream("/Users/markee/Desktop/"+ name + ".jpg");
         *
         * a.write(data);
         * a.flush();
         * a.close();
         *
         * } catch (Exception e) {
         * LogWriter.writeLog("Unable to save jpeg " + name);
         *
         * }  /**/
        
        
        
        image = decodeColorData.JPEG2000ToRGBImage(data,w,h,decodeArray,imageData.getpX(),imageData.getpY(),d);
        
        return image;
    }
    
    //
    //OS version
    public static byte[] getBytesFromJPEG2000(final byte[] data, GenericColorSpace decodeColorData,final PdfObject XObject) {
    
        Raster ras= getRasterFromJPEG2000(data);
        
        return ((DataBufferByte)ras.getDataBuffer()).getData();
    }
    /**/
    
    //
    
    static Raster getRasterFromJPEG2000(final byte[] data) {
        
        final ByteArrayInputStream in;
        
        ImageReader iir=null;
        final ImageInputStream iin;
        
        Raster ras=null;
        
        try {
            
            //read the image data
            in = new ByteArrayInputStream(data);
            
            //suggestion from Carol
            final Iterator iterator = ImageIO.getImageReadersByFormatName("JPEG2000");
            
            while (iterator.hasNext()){
                final Object o = iterator.next();
                iir = (ImageReader) o;
                if (iir.canReadRaster()) {
                    break;
                }
            }
            
            ImageIO.setUseCache(false);
            iin = ImageIO.createImageInputStream((in));
            iir.setInput(iin, true);
            ras=iir.read(0).getRaster();
            
            in.close();
            iir.dispose();
            iin.close();
            
        }catch(final Exception ee){
            
            if(LogWriter.isOutput()) {
                LogWriter.writeLog("Problem closing  " + ee);
            }
        }
        
        return ras;
    }
}