| Name | Description | |
|---|---|---|
 | ForwWTFull Constructor | Initializes this object with the given source of image data and with all the decompositon parameters |
The following tables list the members exposed by ForwWTFull.
| Name | Description | |
|---|---|---|
| ForwWTFull Constructor | Initializes this object with the given source of image data and with all the decompositon parameters |
| Name | Description | |
|---|---|---|
 | CbULX | Overridden. Returns the horizontal offset of the code-block partition. Allowable values are 0 and 1, nothing else. |
| CbULY | Overridden. Returns the vertical offset of the code-block partition. Allowable values are 0 and 1, nothing else. |
| ImgHeight | Returns the overall height of the image in pixels. This is the image's height without accounting for any component subsampling or tiling.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| ImgULX | Returns the horizontal coordinate of the image origin, the top-left corner, in the canvas system, on the reference grid.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| ImgULY | Returns the vertical coordinate of the image origin, the top-left corner, in the canvas system, on the reference grid.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| ImgWidth | Returns the overall width of the image in pixels. This is the image's width without accounting for any component subsampling or tiling.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| NomTileHeight | Returns the nominal tiles height (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| NomTileWidth | Returns the nominal tiles width (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| NumComps | Returns the number of components in the image.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| TileHeight | Returns the overall height of the current tile in pixels. This is the tile's height without accounting for any component subsampling. This is also referred as the reference grid height in the current tile.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| TileIdx | Returns the index of the current tile, relative to a standard scan-line order.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| TilePartULX | Returns the horizontal tile partition offset in the reference grid (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| TilePartULY | Returns the vertical tile offset in the reference grid (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| TileWidth | Returns the overall width of the current tile in pixels. This is the tile's width without accounting for any component subsampling. This is also referred as the reference grid width in the current tile.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| Name | Description | |
|---|---|---|
 | getAnSubbandTree | Overridden. Returns a reference to the subband tree structure representing the subband decomposition for the specified tile-component of the source. |
| getCompImgHeight | Returns the height in pixels of the specified component in the overall image.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getCompImgWidth | Returns the width in pixels of the specified component in the overall image.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getCompSubsX | Returns the component subsampling factor in the horizontal direction, for the specified component. This is, approximately, the ratio of dimensions between the reference grid and the component itself, see the 'ImgData' interface desription for details.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getCompSubsY | Returns the component subsampling factor in the vertical direction, for the specified component. This is, approximately, the ratio of dimensions between the reference grid and the component itself, see the 'ImgData' interface desription for details.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getCompULX | Returns the horizontal coordinate of the upper-left corner of the specified component in the current tile.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getCompULY | Returns the vertical coordinate of the upper-left corner of the specified component in the current tile.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getDataType | Overridden. Return the data type of this CBlkWTDataSrc. Its value should be either DataBlk.TYPE_INT or DataBlk.TYPE_FLOAT but can change according to the current tile-component. |
| getDecomp | Overridden. Returns the wavelet tree decomposition. Actually JPEG 2000 part 1 only supports WT_DECOMP_DYADIC decomposition. |
| getDecompLevels | Overridden. Returns the number of decomposition levels that are applied to the LL band, in the specified tile-component. A value of 0 means that no wavelet transform is applied. |
| getFixedPoint | Overridden. Returns the position of the fixed point in the specified component. This is the position of the least significant integral (i.e. non-fractional) bit, which is equivalent to the number of fractional bits. For instance, for fixed-point values with 2 fractional bits, 2 is returned. For floating-point data this value does not apply and 0 should be returned. Position 0 is the position of the least significant bit in the data. |
| getHorAnWaveletFilters | Overridden. Returns the horizontal analysis wavelet filters used in each level, for the specified component and tile. The first element in the array is the filter used to obtain the lowest resolution (resolution level 0) subbands (i.e. lowest frequency LL subband), the second element is the one used to generate the resolution level 1 subbands, and so on. If there are less elements in the array than the number of resolution levels, then the last one is assumed to repeat itself.
The returned filters are applicable only to the specified component and in the current tile. The resolution level of a subband is the resolution level to which a subband contributes, which is different from its decomposition level. |
| getImplementationType | Overridden. Returns the implementation type of this wavelet transform, WT_IMPL_FULL (full-page based transform). All components return the same. |
| getNextCodeBlock | Overridden. Returns the next code-block in the current tile for the specified component, as a copy (see below). The order in which code-blocks are returned is not specified. However each code-block is returned only once and all code-blocks will be returned if the method is called 'N' times, where 'N' is the number of code-blocks in the tile. After all the code-blocks have been returned for the current tile calls to this method will return 'null'.
When changing the current tile (through 'setTile()' or 'nextTile()') this method will always return the first code-block, as if this method was never called before for the new current tile. The data returned by this method is always a copy of the internal data of this object, and it can be modified "in place" without any problems after being returned. The 'offset' of the returned data is 0, and the 'scanw' is the same as the code-block width. The 'magbits' of the returned data is not set by this method and should be ignored. See the 'CBlkWTData' class. The 'ulx' and 'uly' members of the returned 'CBlkWTData' object contain the coordinates of the top-left corner of the block, with respect to the tile, not the subband. |
| getNextInternCodeBlock | Overridden. Returns the next code-block in the current tile for the specified component. The order in which code-blocks are returned is not specified. However each code-block is returned only once and all code-blocks will be returned if the method is called 'N' times, where 'N' is the number of code-blocks in the tile. After all the code-blocks have been returned for the current tile calls to this method will return 'null'.
When changing the current tile (through 'setTile()' or 'nextTile()') this method will always return the first code-block, as if this method was never called before for the new current tile. The data returned by this method is the data in the internal buffer of this object, and thus can not be modified by the caller. The 'offset' and 'scanw' of the returned data have, in general, some non-zero value. The 'magbits' of the returned data is not set by this method and should be ignored. See the 'CBlkWTData' class. The 'ulx' and 'uly' members of the returned 'CBlkWTData' object contain the coordinates of the top-left corner of the block, with respect to the tile, not the subband. |
| getNomRangeBits | (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getNumTiles | Overloaded. Returns the number of tiles in the horizontal and vertical directions.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getTile | Returns the indexes of the current tile. These are the horizontal and vertical indexes of the current tile.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getTileCompHeight | Returns the height in pixels of the specified tile-component.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getTileCompWidth | Returns the width in pixels of the specified tile-component tile.
This default implementation returns the value of the source. (Inherited from CSJ2K.j2k.image.ImgDataAdapter) |
| getVertAnWaveletFilters | Overridden. Returns the vertical analysis wavelet filters used in each level, for the specified component and tile. The first element in the array is the filter used to obtain the lowest resolution (resolution level 0) subbands (i.e. lowest frequency LL subband), the second element is the one used to generate the resolution level 1 subbands, and so on. If there are less elements in the array than the number of resolution levels, then the last one is assumed to repeat itself.
The returned filters are applicable only to the specified component and in the current tile. The resolution level of a subband is the resolution level to which a subband contributes, which is different from its decomposition level. |
| isReversible | Overridden. Returns the reversibility of the wavelet transform for the specified component and tile. A wavelet transform is reversible when it is suitable for lossless and lossy-to-lossless compression. |
| nextTile | Overridden. Advances to the next tile, in standard scan-line order (by rows then columns). An NoNextElementException is thrown if the current tile is the last one (i.e. there is no next tile).
This method resets the 'subbTrees' array, and recalculates the values of the 'reversible' array. It also resets the decomposed component buffers. |
| setTile | Overridden. Changes the current tile, given the new coordinates.
This method resets the 'subbTrees' array, and recalculates the values of the 'reversible' array. It also resets the decomposed component buffers. |