public class InvCompTransf extends ImgDataAdapter implements BlkImgDataSrc
ModuleSpec
Modifier and Type | Field and Description |
---|---|
static int |
INV_ICT
Identifier for the Inverse Irreversible Component
Transformation (INV_ICT).
|
static int |
INV_RCT
Identifier for the Inverse Reversible Component Transformation
(INV_RCT).
|
static int |
NONE
Identifier for no component transformation.
|
static char |
OPT_PREFIX
The prefix for inverse component transformation options: 'M'
|
imgdatasrc, tIdx
Constructor and Description |
---|
InvCompTransf(BlkImgDataSrc imgSrc,
DecoderSpecs decSpec,
int[] utdepth)
Constructs a new ForwCompTransf object that operates on the
specified source of image data.
|
Modifier and Type | Method and Description |
---|---|
static int[] |
calcMixedBitDepths(int[] utdepth,
int ttype,
int[] tdepth)
Calculates the bitdepths of the transformed components, given the
bitdepth of the un-transformed components and the component
tranformation type.
|
DataBlk |
getCompData(DataBlk blk,
int c)
Apply inverse component transformation associated with the current
tile.
|
int |
getFixedPoint(int c)
Returns the position of the fixed point in the specified
component.
|
DataBlk |
getInternCompData(DataBlk blk,
int c)
Apply the inverse component transformation associated with the current
tile.
|
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.
|
static String[][] |
getParameterInfo()
Returns the parameters that are used in this class and implementing
classes.
|
boolean |
isReversible()
Returns true if this transform is reversible in 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.
|
String |
toString()
Returns a string with a descriptive text of which inverse component
transformation is used.
|
getCompImgHeight, getCompImgWidth, getCompSubsX, getCompSubsY, getCompULX, getCompULY, getImgHeight, getImgULX, getImgULY, getImgWidth, getNomTileHeight, getNomTileWidth, getNumComps, getNumTiles, getNumTiles, getTile, getTileCompHeight, getTileCompWidth, getTileHeight, getTileIdx, getTilePartULX, getTilePartULY, getTileWidth
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
getCompImgHeight, getCompImgWidth, getCompSubsX, getCompSubsY, getCompULX, getCompULY, getImgHeight, getImgULX, getImgULY, getImgWidth, getNomTileHeight, getNomTileWidth, getNumComps, getNumTiles, getNumTiles, getTile, getTileCompHeight, getTileCompWidth, getTileHeight, getTileIdx, getTilePartULX, getTilePartULY, getTileWidth
public static final int NONE
public static final char OPT_PREFIX
public static final int INV_RCT
public static final int INV_ICT
public InvCompTransf(BlkImgDataSrc imgSrc, DecoderSpecs decSpec, int[] utdepth)
imgSrc
- The source from where to get the data to be
transformeddecSpec
- The decoder specificationsBlkImgDataSrc
public static String[][] getParameterInfo()
public String toString()
public boolean isReversible()
public int getFixedPoint(int c)
This default implementation assumes that the number of fractional bits is not modified by the component mixer.
getFixedPoint
in interface BlkImgDataSrc
c
- The index of the component.public static int[] calcMixedBitDepths(int[] utdepth, int ttype, int[] tdepth)
utdepth
- The bitdepth of each un-transformed componentttype
- The type ID of the inverse component tranformationtdepth
- If not null the results are stored in this
array, otherwise a new array is allocated and returned.public int getNomRangeBits(int c)
getNomRangeBits
in interface ImgData
getNomRangeBits
in class ImgDataAdapter
c
- The index of the component.public DataBlk getCompData(DataBlk blk, int c)
This method calls the getInternCompData() method, but respects the definitions of the getCompData() method defined in the BlkImgDataSrc interface.
getCompData
in interface BlkImgDataSrc
blk
- Determines the rectangular area to return, and the
data is returned in this object.c
- Index of the output component.BlkImgDataSrc.getCompData(jj2000.j2k.image.DataBlk, int)
public DataBlk getInternCompData(DataBlk blk, int c)
getInternCompData
in interface BlkImgDataSrc
blk
- Determines the rectangular area to return.c
- Index of the output component.invRCT(jj2000.j2k.image.DataBlk, int)
,
invICT(jj2000.j2k.image.DataBlk, int)
public void setTile(int x, int y)
This default implementation changes the tile in the source and re-initializes properly component transformation variables..
setTile
in interface ImgData
setTile
in class ImgDataAdapter
x
- The horizontal index of the tile.y
- The vertical index of the new tile.public void nextTile()
This default implementation just advances to the next tile in the source and re-initializes properly component transformation variables.
nextTile
in interface ImgData
nextTile
in class ImgDataAdapter
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