Examples of ucar.jpeg.jj2000.j2k.image.BlkImgDataSrc

Package ucar.jpeg.jj2000.j2k.image

Examples of ucar.jpeg.jj2000.j2k.image.BlkImgDataSrc

ucar.jpeg.jj2000.j2k.image.DataBlkInt
This interface defines the methods to transfer image data in blocks, without following any particular order (random access). This interface does not define the methods to access the image characteristics, such as width, height, number of components, tiles, etc., or to change the current tile. That is provided by other interfaces such as ImgData.
This interface has the notion of a current tile. All data, coordinates and dimensions are always relative to the current tile. If there is only one tile then it is equivalent as having no tiles.
A block of requested data may never cross tile boundaries. This should be enforced by the implementing class, or the source of image data.
This interface defines the methods that can be used to retrieve image data. Implementing classes need not buffer all the image data, they can ask their source to load the data they need. @see ImgData

    int E = drs.getBinaryScaleFactor();
    //System.out.println( "DS E=" + E );
    float EE = (float) java.lang.Math.pow((double) 2.0, (double) E);
    //System.out.println( "DS EE=" + EE );


    Grib2JpegDecoder g2j = null;
    int numberPoints = 0;
    try {
      if (nb != 0) {  // there's data to decode
        String[] argv = new String[4];
        argv[0] = "-rate";
        argv[1] = Integer.toString(nb);
        argv[2] = "-verbose";
        argv[3] = "off";
        //argv[ 4 ] = "-debug" ;
        //argv[ 2 ] = "-nocolorspace" ;
        //argv[ 3 ] = "-Rno_roi" ;
        //argv[ 4 ] = "-cdstr_info" ;
        //argv[ 5 ] = "-verbose" ;
        g2j = new Grib2JpegDecoder(argv);
        // how jpeg2000.jar use to decode, used raf
        //g2j.decode(raf, length - 5);
        // jpeg-1.0.jar added method to have the data read first
        byte[] buf = new byte[ length - 5 ];
        raf.read( buf );
        g2j.decode( buf );
      }
      numberPoints = gds.getGdsVars().getNumberPoints();
      //System.out.println( "DS GDS NumberPoints=" +  gds.getNumberPoints() );
      data = new float[numberPoints];
      boolean[] bitmap = bms.getBitmap();

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        float [][] out = new float [3][];
        float [][] in  = new float [3][];


        for (i=0;i<3;++i) {
            in[i]  = inblk [i] .getDataFloat();
            outblk[i] = new DataBlkFloat ();
            copyGeometry (outblk[i],inblk[i]);
            outblk[i].offset = inblk[i].offset;
            out[i] = new float [length];
            outblk[i].setData (out[i]); }

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        int [][] out = new int [3][];
        int [][] in  = new int [3][];


        for (i=0;i<3;++i) {
            in[i]  = inblk [i] .getDataInt();
            outblk[i] = new DataBlkInt ();
            copyGeometry (outblk[i],inblk[i]);
            outblk[i].offset = inblk[i].offset;
            out[i] = new int [length];
            outblk[i].setData (out[i]); }

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Related Classes of ucar.jpeg.jj2000.j2k.image.BlkImgDataSrc

ucar.grib.grib2.Grib2DataSection

ucar.jpeg.colorspace.SYccColorSpaceMapper

java.util.Vector

java.io.ByteArrayInputStream

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