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java.lang.Objectucar.jpeg.jj2000.j2k.image.ImgDataAdapter
ucar.jpeg.colorspace.ColorSpaceMapper
ucar.jpeg.colorspace.ChannelDefinitionMapper
public class ChannelDefinitionMapper
This class is responsible for the mapping between requested components and image channels.
jj2000.j2k.colorspace.ColorSpace
Nested Class Summary |
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Nested classes/interfaces inherited from class ucar.jpeg.colorspace.ColorSpaceMapper |
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ColorSpaceMapper.ComputedComponents |
Field Summary |
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Fields inherited from class ucar.jpeg.colorspace.ColorSpaceMapper |
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computed, csMap, dataFloat, dataInt, eol, fixedPtBitsArray, inFloat, inInt, maxValueArray, ncomps, OPT_PREFIX, pl, shiftValueArray, src, srcBlk, workDataFloat, workDataInt, workFloat, workInt |
Fields inherited from class ucar.jpeg.jj2000.j2k.image.ImgDataAdapter |
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imgdatasrc, tIdx |
Constructor Summary | |
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protected |
ChannelDefinitionMapper(BlkImgDataSrc src,
ColorSpace csMap)
Ctor which creates an ICCProfile for the image and initializes all data objects (input, working, and output). |
Method Summary | |
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static BlkImgDataSrc |
createInstance(BlkImgDataSrc src,
ColorSpace csMap)
Factory method for creating instances of this class. |
DataBlk |
getCompData(DataBlk out,
int c)
Returns, in the blk argument, a block of image data containing the specifed rectangular area, in the specified component. |
int |
getCompImgHeight(int c)
Returns the height in pixels of the specified component in the overall image. |
int |
getCompImgWidth(int c)
Returns the width in pixels of the specified component in the overall image. |
int |
getCompSubsX(int c)
Returns the component subsampling factor in the horizontal direction, for the specified component. |
int |
getCompSubsY(int c)
Returns the component subsampling factor in the vertical direction, for the specified component. |
int |
getCompULX(int c)
Returns the horizontal coordinate of the upper-left corner of the specified component in the current tile. |
int |
getCompULY(int c)
Returns the vertical coordinate of the upper-left corner of the specified component in the current tile. |
int |
getFixedPoint(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. |
DataBlk |
getInternCompData(DataBlk out,
int c)
Returns, in the blk argument, a block of image data containing the specifed rectangular area, in the specified component. |
int |
getNomRangeBits(int c)
Returns the number of bits, referred to as the "range bits", corresponding to the nominal range of the image data in the specified component. |
int |
getTileCompHeight(int t,
int c)
Returns the height in pixels of the specified tile-component. |
int |
getTileCompWidth(int t,
int c)
Returns the width in pixels of the specified tile-component tile. |
String |
toString()
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Methods inherited from class ucar.jpeg.colorspace.ColorSpaceMapper |
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copyGeometry, getParameterInfo, setInternalBuffer |
Methods inherited from class ucar.jpeg.jj2000.j2k.image.ImgDataAdapter |
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getImgHeight, getImgULX, getImgULY, getImgWidth, getNomTileHeight, getNomTileWidth, getNumComps, getNumTiles, getNumTiles, getTile, getTileHeight, getTileIdx, getTilePartULX, getTilePartULY, getTileWidth, nextTile, setTile |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface ucar.jpeg.jj2000.j2k.image.ImgData |
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getImgHeight, getImgULX, getImgULY, getImgWidth, getNomTileHeight, getNomTileWidth, getNumComps, getNumTiles, getNumTiles, getTile, getTileHeight, getTileIdx, getTilePartULX, getTilePartULY, getTileWidth, nextTile, setTile |
Constructor Detail |
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protected ChannelDefinitionMapper(BlkImgDataSrc src, ColorSpace csMap) throws ColorSpaceException
src
- -- Source of image datacsm
- -- provides colorspace info
ColorSpaceException
Method Detail |
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public static BlkImgDataSrc createInstance(BlkImgDataSrc src, ColorSpace csMap) throws ColorSpaceException
src
- -- source of image datacsMap
- -- provides colorspace info
ColorSpaceException
public DataBlk getCompData(DataBlk out, int c)
The rectangular area to return is specified by the 'ulx', 'uly', 'w' and 'h' members of the 'blk' argument, relative to the current tile. These members are not modified by this method. 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 is reused, and it must be large enough to contain the block's data. Otherwise an 'ArrayStoreException' or an 'IndexOutOfBoundsException' is thrown by the Java system.
The returned data has its 'progressive' attribute set to that of the input data.
getCompData
in interface BlkImgDataSrc
getCompData
in class ColorSpaceMapper
blk
- Its coordinates and dimensions specify the area to
return. If it contains a non-null data array, then it must have the
correct dimensions. 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. Only 0
and 3 are valid.
getInternCompData(ucar.jpeg.jj2000.j2k.image.DataBlk, int)
public DataBlk getInternCompData(DataBlk out, int c)
The rectangular area to return is specified by the 'ulx', 'uly', 'w' and 'h' members of the 'blk' argument, relative to the current tile. These members are not modified by this method. The 'offset' of the returned data is 0, and the 'scanw' is the same as the block's width. See the 'DataBlk' class.
This method, in general, is less efficient than the 'getInternCompData()' method since, in general, it copies the data. However if the array of returned data is to be modified by the caller then this method is preferable.
If the data array in 'blk' is 'null', then a new one is created. If the data array is not 'null' then it is reused, and it must be large enough to contain the block's data. Otherwise an 'ArrayStoreException' or an 'IndexOutOfBoundsException' is thrown by the Java system.
The returned data may have its 'progressive' attribute set. In this case the returned data is only an approximation of the "final" data.
getInternCompData
in interface BlkImgDataSrc
getInternCompData
in class ColorSpaceMapper
blk
- Its coordinates and dimensions specify the area to return,
relative to the current tile. 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. Some fields in this object are modified to return the
data.c
- The index of the component from which to get the data.
getCompData(ucar.jpeg.jj2000.j2k.image.DataBlk, int)
public int getFixedPoint(int c)
getFixedPoint
in interface BlkImgDataSrc
getFixedPoint
in class ColorSpaceMapper
c
- The index of the component.
public int getNomRangeBits(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getNomRangeBits
in interface ImgData
getNomRangeBits
in class ImgDataAdapter
c
- The index of the component.
public int getCompImgHeight(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getCompImgHeight
in interface ImgData
getCompImgHeight
in class ImgDataAdapter
c
- The index of the component, from 0 to N-1.
public int getCompImgWidth(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getCompImgWidth
in interface ImgData
getCompImgWidth
in class ImgDataAdapter
c
- The index of the component, from 0 to N-1.
public int getCompSubsX(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getCompSubsX
in interface ImgData
getCompSubsX
in class ImgDataAdapter
c
- The index of the component (between 0 and N-1)
ImgData
public int getCompSubsY(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getCompSubsY
in interface ImgData
getCompSubsY
in class ImgDataAdapter
c
- The index of the component (between 0 and N-1)
ImgData
public int getCompULX(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getCompULX
in interface ImgData
getCompULX
in class ImgDataAdapter
c
- The component index.public int getCompULY(int c)
ImgDataAdapter
This default implementation returns the value of the source.
getCompULY
in interface ImgData
getCompULY
in class ImgDataAdapter
c
- The component index.public int getTileCompHeight(int t, int c)
ImgDataAdapter
This default implementation returns the value of the source.
getTileCompHeight
in interface ImgData
getTileCompHeight
in class ImgDataAdapter
t
- The tile index.c
- The index of the component, from 0 to N-1.
public int getTileCompWidth(int t, int c)
ImgDataAdapter
This default implementation returns the value of the source.
getTileCompWidth
in interface ImgData
getTileCompWidth
in class ImgDataAdapter
t
- Tile indexc
- The index of the component, from 0 to N-1.
public String toString()
toString
in class Object
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