| java.lang.Object
 jj2000.j2k.image.ImgDataAdapter
All known Subclasses: jj2000.j2k.roi.encoder.ROIScaler, jj2000.j2k.image.forwcomptransf.ForwCompTransf, jj2000.j2k.image.invcomptransf.InvCompTransf, jj2000.j2k.entropy.encoder.EntropyCoder, jj2000.j2k.image.Tiler, jj2000.j2k.image.ImgDataConverter, jj2000.j2k.entropy.encoder.PostCompRateAllocator, jj2000.j2k.wavelet.analysis.ForwardWT, jj2000.j2k.quantization.quantizer.Quantizer,
| ImgDataAdapter | | abstract public class ImgDataAdapter implements ImgData(Code) | | This class provides a default implementation of the methods in the
'ImgData' interface. The default implementation is just to return the value
of the source, where the source is another 'ImgData' object.
This abstract class can be used to facilitate the development of other
classes that implement 'ImgData'. For example a YCbCr color transform can
inherit from this class and all the trivial methods do not have to be
re-implemented.
If the default implementation of a method provided in this class does
not suit a particular implementation of the 'ImgData' interface, the method
can be overridden to implement the proper behavior.
See Also: ImgData |
| Constructor Summary | |
| protected | ImgDataAdapter(ImgData src)
Instantiates the ImgDataAdapter object specifying the ImgData source. |
| Method Summary | |
| public int | getCompImgHeight(int c)
Returns the height in pixels of the specified component in the overall
image.
This default implementation returns the value of the source.
Parameters:
c - The index of the component, from 0 to N-1. | | public int | getCompImgWidth(int c)
Returns the width in pixels of the specified component in the overall
image.
This default implementation returns the value of the source.
Parameters:
c - The index of the component, from 0 to N-1. | | public int | getCompSubsX(int c)
Returns the component subsampling factor in the horizontal direction,
for the specified component. | | public int | getCompSubsY(int c)
Returns the component subsampling factor in the vertical direction, for
the specified component. | | public int | getCompULX(int c)
Returns the horizontal coordinate of the upper-left corner of the
specified component in the current tile. | | public int | getCompULY(int c)
Returns the vertical coordinate of the upper-left corner of the
specified component in the current tile. | | public int | getImgHeight()
Returns the overall height of the image in pixels. | | public int | getImgULX()
Returns the horizontal coordinate of the image origin, the top-left
corner, in the canvas system, on the reference grid. | | public int | getImgULY()
Returns the vertical coordinate of the image origin, the top-left
corner, in the canvas system, on the reference grid. | | public int | getImgWidth()
Returns the overall width of the image in pixels. | | public 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. | | public int | getNomTileHeight()
| | public int | getNomTileWidth()
| | public int | getNumComps()
Returns the number of components in the image. | | public Point | getNumTiles(Point co)
Returns the number of tiles in the horizontal and vertical directions.
This default implementation returns the value of the source.
Parameters:
co - If not null this object is used to return the information. | | public int | getNumTiles()
Returns the total number of tiles in the image. | | public Point | getTile(Point co)
Returns the indexes of the current tile. | | public int | getTileCompHeight(int t, int c)
Returns the height in pixels of the specified tile-component.
This default implementation returns the value of the source.
Parameters:
t - The tile index.
Parameters:
c - The index of the component, from 0 to N-1. | | public int | getTileCompWidth(int t, int c)
Returns the width in pixels of the specified tile-component
tile.
This default implementation returns the value of the source.
Parameters:
t - Tile index
Parameters:
c - The index of the component, from 0 to N-1. | | public int | getTileHeight()
Returns the overall height of the current tile in pixels. | | public int | getTileIdx()
Returns the index of the current tile, relative to a standard scan-line
order. | | public int | getTilePartULX()
| | public int | getTilePartULY()
| | public int | getTileWidth()
Returns the overall width of the current tile in pixels. | | public void | nextTile()
Advances to the next tile, in standard scan-line order (by rows then
columns). | | public void | setTile(int x, int y)
Changes the current tile, given the new indexes. |
| tIdx | | protected int tIdx(Code) | | Index of the current tile
|
| ImgDataAdapter | | protected ImgDataAdapter(ImgData src)(Code) | | Instantiates the ImgDataAdapter object specifying the ImgData source.
Parameters:
src - From where to obtain all the ImgData values. |
| getCompImgHeight | | public int getCompImgHeight(int c)(Code) | | Returns the height in pixels of the specified component in the overall
image.
This default implementation returns the value of the source.
Parameters:
c - The index of the component, from 0 to N-1. The height in pixels of component c in the overallimage. |
| getCompImgWidth | | public int getCompImgWidth(int c)(Code) | | Returns the width in pixels of the specified component in the overall
image.
This default implementation returns the value of the source.
Parameters:
c - The index of the component, from 0 to N-1. The width in pixels of component c in the overallimage. |
| getCompSubsX | | public int getCompSubsX(int c)(Code) | | 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.
Parameters:
c - The index of the component (between 0 and N-1) The horizontal subsampling factor of component 'c'
See Also: ImgData |
| getCompSubsY | | public int getCompSubsY(int c)(Code) | | 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.
Parameters:
c - The index of the component (between 0 and N-1) The vertical subsampling factor of component 'c'
See Also: ImgData |
| getCompULX | | public int getCompULX(int c)(Code) | | 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.
Parameters:
c - The component index. |
| getCompULY | | public int getCompULY(int c)(Code) | | 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.
Parameters:
c - The component index. |
| getImgHeight | | public int getImgHeight()(Code) | | 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.
The total image's height in pixels. |
| getImgULX | | public int getImgULX()(Code) | | 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.
The horizontal coordinate of the image origin in the canvassystem, on the reference grid. |
| getImgULY | | public int getImgULY()(Code) | | 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.
The vertical coordinate of the image origin in the canvassystem, on the reference grid. |
| getImgWidth | | public int getImgWidth()(Code) | | 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.
The total image's width in pixels. |
| getNomRangeBits | | public int getNomRangeBits(int c)(Code) | | Returns the number of bits, referred to as the "range bits",
corresponding to the nominal range of the image data in the specified
component. If this number is n 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. In the case of transformed data which is not in
the image domain (e.g., wavelet coefficients), this method returns the
"range bits" of the image data that generated the coefficients.
This default implementation returns the value of the source.
Parameters:
c - The index of the component. The number of bits corresponding to the nominal range of theimage data (in the image domain). |
| getNomTileHeight | | public int getNomTileHeight()(Code) | | Returns the nominal tiles height
|
| getNomTileWidth | | public int getNomTileWidth()(Code) | | Returns the nominal tiles width
|
| getNumComps | | public int getNumComps()(Code) | | Returns the number of components in the image.
This default implementation returns the value of the source.
The number of components in the image. |
| getNumTiles | | public Point getNumTiles(Point co)(Code) | | Returns the number of tiles in the horizontal and vertical directions.
This default implementation returns the value of the source.
Parameters:
co - If not null this object is used to return the information. Ifnull a new one is created and returned. The number of tiles in the horizontal (Point.x) and vertical(Point.y) directions. |
| getNumTiles | | public int getNumTiles()(Code) | | Returns the total number of tiles in the image.
This default implementation returns the value of the source.
The total number of tiles in the image. |
| getTile | | public Point getTile(Point co)(Code) | | 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.
Parameters:
co - If not null this object is used to return the information. Ifnull a new one is created and returned. The current tile's indexes (vertical and horizontal indexes). |
| getTileCompHeight | | public int getTileCompHeight(int t, int c)(Code) | | Returns the height in pixels of the specified tile-component.
This default implementation returns the value of the source.
Parameters:
t - The tile index.
Parameters:
c - The index of the component, from 0 to N-1. The height in pixels of component c in tilet. |
| getTileCompWidth | | public int getTileCompWidth(int t, int c)(Code) | | Returns the width in pixels of the specified tile-component
tile.
This default implementation returns the value of the source.
Parameters:
t - Tile index
Parameters:
c - The index of the component, from 0 to N-1. The width in pixels of component c in tilet. |
| getTileHeight | | public int getTileHeight()(Code) | | 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.
The total current tile's height in pixels. |
| getTileIdx | | public int getTileIdx()(Code) | | Returns the index of the current tile, relative to a standard scan-line
order.
This default implementation returns the value of the source.
The current tile's index (starts at 0). |
| getTilePartULX | | public int getTilePartULX()(Code) | | Returns the horizontal tile partition offset in the reference grid
|
| getTilePartULY | | public int getTilePartULY()(Code) | | Returns the vertical tile offset in the reference grid
|
| getTileWidth | | public int getTileWidth()(Code) | | 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.
The total current tile's width in pixels. |
| nextTile | | public void nextTile()(Code) | | 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 default implementation just advances to the next tile in the
source.
|
| setTile | | public void setTile(int x, int y)(Code) | | Changes the current tile, given the new indexes. An
IllegalArgumentException is thrown if the indexes do not correspond to
a valid tile.
This default implementation just changes the tile in the source.
Parameters:
x - The horizontal index of the tile.
Parameters:
y - The vertical index of the new tile. |
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