Examples of jj2000.j2k.image.Tiler

Package jj2000.j2k.image

Examples of jj2000.j2k.image.Tiler

jj2000.j2k.wavelet.analysis.ForwardWT
This class places an image in the canvas coordinate system, tiles it, if so specified, and performs the coordinate conversions transparently. The source must be a 'BlkImgDataSrc' which is not tiled and has a the image origin at the canvas origin (i.e. it is not "canvased"), or an exception is thrown by the constructor. A tiled and "canvased" output is given through the 'BlkImgDataSrc' interface. See the 'ImgData' interface for a description of the canvas and tiling.
All tiles produced are rectangular, non-overlapping and their union covers all the image. However, the tiling may not be uniform, depending on the nominal tile size, tiling origin, component subsampling and other factors. Therefore it might not be assumed that all tiles are of the same width and height.

The nominal dimension of the tiles is the maximal one, in the reference grid. All the components of the image have the same number of tiles.
@see ImgData @see BlkImgDataSrc


    /** Sets <code>componentTransformation</code> */
    // NOTE This requires filters having been set previously.
    public void setComponentTransformation(String values) {
        componentTransformation =
            new ForwCompTransfSpec(numTiles,
                                   numComponents,
                                   ModuleSpec.SPEC_TYPE_TILE,
                                   (AnWTFilterSpec)filters,
                                   this,
                                   values);

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     * constructor, to which warnings should be sent.
     */
    public J2KMetadata(ImageInputStream iis,
                       J2KImageReader reader) throws IOException {
        this();
        RandomAccessIO in = new IISRandomAccessIO(iis);


        iis.mark();
        // **** File Format ****
        // If the codestream is wrapped in the jp2 fileformat, Read the
        // file format wrapper

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        // Creates ForwardWT (forward wavelet transform)
        ForwardWT dwt = ForwardWT.createInstance(converter, j2kwparam);


        // Creates Quantizer
        Quantizer quant = Quantizer.createInstance(dwt,j2kwparam);


        // Creates ROIScaler
        ROIScaler rois = ROIScaler.createInstance(quant, j2kwparam);


        // Creates EntropyCoder

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        // Creates Quantizer
        Quantizer quant = Quantizer.createInstance(dwt,j2kwparam);


        // Creates ROIScaler
        ROIScaler rois = ROIScaler.createInstance(quant, j2kwparam);


        // Creates EntropyCoder
        EntropyCoder ecoder =
      EntropyCoder.createInstance(rois, j2kwparam,
    j2kwparam.getCodeBlockSize(),

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        // Tile-parts and packed packet headers
        int pktspertp = j2kwparam.getPacketPerTilePart();
        int ntiles = imgtiler.getNumTiles();
        if (pktspertp>0 || pphTile || pphMain){
            CodestreamManipulator cm =
                new CodestreamManipulator(tmpFile, ntiles, pktspertp,
                                          pphMain, pphTile, tempSop,
                                          tempEph);
            fileLength += cm.doCodestreamManipulation();
        }


        // File Format
        int nc= imgsrc.getNumComps() ;
        int[] bpc = new int[nc];

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  {
  }
  
  public void decode( String inputFileName, String outputFileName )
  {
    ParameterList defpl;
    String param;
    int i;


    // Get the dfault parameter values
    defpl = new ParameterList();
    for (i=pinfo.length-1; i>=0; i--) {
      if(pinfo[i][3]!=null)
        defpl.put(pinfo[i][0],pinfo[i][3]);
    }


    // Get all parameters from and put them in a parameter list
    pl = new ParameterList(defpl);
    for (i=0; i<pinfo.length; i++) {
      param = getParameter(pinfo[i][0]);
      if (param != null) {
        pl.put(pinfo[i][0],param);
      }

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  {
  }
  
  public void encode( String inputFileName, String outputFileName, boolean codeStreamOnly)
  {
    ParameterList defpl;
    String param;
    int i;


    // Get the dfault parameter values
    defpl = new ParameterList();
    for (i=pinfo.length-1; i>=0; i--) {
      if(pinfo[i][3]!=null)
        defpl.put(pinfo[i][0],pinfo[i][3]);
    }


    // Get all parameters from and put them in a parameter list
    pl = new ParameterList(defpl);
    for (i=0; i<pinfo.length; i++) {
      param = getParameter(pinfo[i][0]);
      if (param != null) {
        pl.put(pinfo[i][0],param);
      }

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  if (J2KImageWriteParam.FILTER_97.equals(values))
      setQuantizationType ("expounded");
  else
      setQuantizationType("reversible");


        filters = new AnWTFilterSpec(numTiles,
                                     numComponents,
                                     ModuleSpec.SPEC_TYPE_TILE_COMP,
                                     (QuantTypeSpec)quantizationType,
                                     this,
                                     values);

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        // Creates ImgDataConverter
        ImgDataConverter converter = new ImgDataConverter(fctransf);


        // Creates ForwardWT (forward wavelet transform)
        ForwardWT dwt = ForwardWT.createInstance(converter, j2kwparam);


        // Creates Quantizer
        Quantizer quant = Quantizer.createInstance(dwt,j2kwparam);


        // Creates ROIScaler

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