public class InvWTFull extends InverseWT
The image can be reconstructed at different (image) resolution levels indexed from the lowest resolution available for each tile-component. This is controlled by the setImgResLevel() method.
Note: Image resolution level indexes may differ from tile-component resolution index. They are indeed indexed starting from the lowest number of decomposition levels of each component of each tile.
Example: For an image (1 tile) with 2 components (component 0 having 2 decomposition levels and component 1 having 3 decomposition levels), the first (tile-) component has 3 resolution levels and the second one has 4 resolution levels, whereas the image has only 3 resolution levels available.
This implementation does not support progressive data, all data is considered to be non-progressive (i.e. "final" data) and the 'progressive' attribute of the 'DataBlk' class is always set to false, see the 'DataBlk' class.
DataBlkdecSpec, maxImgRes, mressrc, reslvlWT_IMPL_FULL, WT_IMPL_LINE| Constructor and Description |
|---|
InvWTFull(CBlkWTDataSrcDec src,
DecoderSpecs decSpec)
Initializes this object with the given source of wavelet
coefficients.
|
| Modifier and Type | Method and Description |
|---|---|
DataBlk |
getCompData(DataBlk blk,
int c)
Returns a block of image data containing the specifed rectangular area,
in the specified component, as a copy (see below).
|
int |
getFixedPoint(int c)
Returns the position of the fixed point in the specified
component.
|
int |
getImplementationType(int c)
Returns the implementation type of this wavelet transform, WT_IMPL_FULL
(full-page based transform).
|
DataBlk |
getInternCompData(DataBlk blk,
int c)
Returns a block of image data containing the specifed rectangular area,
in the specified component, as a reference to the internal buffer (see
below).
|
int |
getNomRangeBits(int c)
Returns the number of bits, referred to as the "range bits",
corresponding to the nominal range of the data in the specified
component.
|
boolean |
isReversible(int t,
int c)
Returns the reversibility of the wavelet transform for the specified
component, in the current tile.
|
void |
nextTile()
Advances to the next tile, in standard scan-line order (by rows then
columns).
|
void |
setTile(int x,
int y)
Changes the current tile, given the new indexes.
|
createInstancegetCompImgHeight, getCompImgWidth, getCompSubsX, getCompSubsY, getCompULX, getCompULY, getImgHeight, getImgULX, getImgULY, getImgWidth, getNomTileHeight, getNomTileWidth, getNumComps, getNumTiles, getNumTiles, getSynSubbandTree, getTile, getTileCompHeight, getTileCompWidth, getTileHeight, getTileIdx, getTilePartULX, getTilePartULY, getTileWidth, setImgResLevelclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetCompImgHeight, getCompImgWidth, getCompSubsX, getCompSubsY, getCompULX, getCompULY, getImgHeight, getImgULX, getImgULY, getImgWidth, getNomTileHeight, getNomTileWidth, getNumComps, getNumTiles, getNumTiles, getTile, getTileCompHeight, getTileCompWidth, getTileHeight, getTileIdx, getTilePartULX, getTilePartULY, getTileWidthpublic InvWTFull(CBlkWTDataSrcDec src, DecoderSpecs decSpec)
src - from where the wavelet coefficinets should be
obtained.decSpec - The decoder specificationspublic boolean isReversible(int t,
int c)
t - The index of the tile.c - The index of the component.public int getNomRangeBits(int c)
The returned value corresponds to the nominal dynamic range of the reconstructed image data, as long as the getNomRangeBits() method of the source returns a value corresponding to the nominal dynamic range of the image data and not not of the wavelet coefficients.
If this number is b then for unsigned data the nominal range is between 0 and 2^b-1, and for signed data it is between -2^(b-1) and 2^(b-1)-1.
c - The index of the component.public int getFixedPoint(int c)
This default implementation assumes that the wavelet transform does not modify the fixed point. If that were the case this method should be overriden.
c - The index of the component.public final DataBlk getInternCompData(DataBlk blk, int c)
The area to return is specified by the 'ulx', 'uly', 'w' and 'h' members of the 'blk' argument. These members are not modified by this method.
The data returned by this method can be the data in the internal buffer of this object, if any, and thus can not be modified by the caller. The 'offset' and 'scanw' of the returned data can be arbitrary. See the 'DataBlk' class.
The returned data has its 'progressive' attribute unset (i.e. false).
blk - Its coordinates and dimensions specify the area to return.c - The index of the component from which to get the data.getInternCompData(io.scif.jj2000.j2k.image.DataBlk, int)public DataBlk getCompData(DataBlk blk, int c)
The area to return is specified by the 'ulx', 'uly', 'w' and 'h' members of the 'blk' argument. These members are not modified by this method.
The data returned by this method is always a copy of the internal data of this object, if any, 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 block's width. See the 'DataBlk' class.
If the data array in 'blk' is null, then a new one is created. If the data array is not null then it must be big enough to contain the requested area.
The returned data always has its 'progressive' attribute unset (i.e false)
blk - Its coordinates and dimensions specify the area to
return. If it contains a non-null data array, then it must be large
enough. If it contains a null data array a new one is created. The
fields in this object are modified to return the data.c - The index of the component from which to get the data.getCompData(io.scif.jj2000.j2k.image.DataBlk, int)public int getImplementationType(int c)
c - The index of the component.WaveletTransform.WT_IMPL_FULLpublic void setTile(int x,
int y)
setTile in interface ImgDatasetTile in class InvWTAdapterx - The horizontal index of the tile.y - The vertical index of the new tile.public void nextTile()
nextTile in interface ImgDatanextTile in class InvWTAdapterCopyright © 2015–2022 SCIFIO. All rights reserved.