Examples of ucar.jpeg.jj2000.j2k.image.output.ImgWriterPPM

Package ucar.jpeg.jj2000.j2k.image.output

Examples of ucar.jpeg.jj2000.j2k.image.output.ImgWriterPPM

ucar.jpeg.jj2000.j2k.image.DataBlkInt
This class writes 3 components from an image in 8 bit unsigned data to a binary PPM file.
The size of the image that is written is the size of the source image. No component subsampling is allowed in any of the components that are written to the file.
Before writing, all coefficients are inversly level-shifted and then "saturated" (they are limited * to the nominal dynamic range).
Ex: if the nominal range is 0-255, the following algorithm is applied:
if coeff<0, output=0 if coeff>255, output=255 else output=coeff The write() methods of an object of this class may not be called concurrently from different threads.
NOTE: This class is not thread safe, for reasons of internal buffering.

    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.output.ImgWriterPPM

ucar.grib.grib2.Grib2DataSection

ucar.jpeg.colorspace.SYccColorSpaceMapper

java.util.Vector

java.io.ByteArrayInputStream

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