| java.lang.Object
 jj2000.j2k.wavelet.synthesis.InvWTAdapter
All known Subclasses: jj2000.j2k.wavelet.synthesis.InverseWT,
| InvWTAdapter | | abstract public class InvWTAdapter implements InvWT(Code) | | This class provides default implementation of the methods in the 'InvWT'
interface. The source is always a 'MultiResImgData', which is a
multi-resolution image. The default implementation is just to return the
value of the source at the current image resolution level, which is set by
the 'setImgResLevel()' method.
This abstract class can be used to facilitate the development of other
classes that implement the 'InvWT' interface, because most of the trivial
methods are already implemented.
If the default implementation of a method provided in this class does
not suit a particular implementation of the 'InvWT' interface, the method
can be overriden to implement the proper behaviour.
If the 'setImgResLevel()' method is overriden then it is very important
that the one of this class is called from the overriding method, so that
the other methods in this class return the correct values.
See Also: InvWT |
| 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 at the
current reconstruction resolution level.
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.
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 | 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 SubbandSyn | getSynSubbandTree(int t, int c)
| | public Point | getTile(Point co)
Returns the indixes 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 at the
current reconstruction resolution level.
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
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 | setImgResLevel(int rl)
Sets the image reconstruction resolution level. | | public void | setTile(int x, int y)
Changes the current tile, given the new indices. |
| maxImgRes | | protected int maxImgRes(Code) | | The maximum available image resolution level
|
| reslvl | | protected int reslvl(Code) | | The resquested image resolution level for reconstruction.
|
| InvWTAdapter | | protected InvWTAdapter(MultiResImgData src, DecoderSpecs decSpec)(Code) | | Instantiates the 'InvWTAdapter' object using the specified
'MultiResImgData' source. The reconstruction resolution level is set to
full resolution (i.e. the maximum resolution level).
Parameters:
src - From where to obtain the values to return
Parameters:
decSpec - The decoder specifications |
| 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 at the
current reconstruction resolution level.
Parameters:
c - The index of the component, from 0 to N-1. The height in pixels of component n in the overallimage. |
| getCompImgWidth | | public int getCompImgWidth(int c)(Code) | | Returns the width in pixels of the specified component in the overall
image.
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.
Parameters:
c - The index of the component (between 0 and N-1). The horizontal subsampling factor of component 'c'.
See Also: jj2000.j2k.image.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.
Parameters:
c - The index of the component (between 0 and N-1). The vertical subsampling factor of component 'c'.
See Also: jj2000.j2k.image.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.
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.
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.
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 at the
current reconstruction resolution level.
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 at the
current reconstruction resolution level.
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.
The total image's width in pixels. |
| getNomTileHeight | | public int getNomTileHeight()(Code) | | Returns the nominal height of tiles
|
| getNomTileWidth | | public int getNomTileWidth()(Code) | | Returns the nominal width of tiles
|
| getNumComps | | public int getNumComps()(Code) | | Returns the number of components in the image.
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. |
| getSynSubbandTree | | public SubbandSyn getSynSubbandTree(int t, int c)(Code) | | Returns the specified synthesis subband tree
Parameters:
t - Tile index.
Parameters:
c - Component index. |
| getTile | | public Point getTile(Point co)(Code) | | Returns the indixes 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 indices (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 at the
current reconstruction resolution level.
Parameters:
t - The tile index.
Parameters:
c - The index of the component, from 0 to N-1. The height in pixels of component n in tilet. |
| getTileCompWidth | | public int getTileCompWidth(int t, int c)(Code) | | Returns the width in pixels of the specified tile-component
Parameters:
t - Tile index
Parameters:
c - The index of the component, from 0 to N-1. The width in pixels of component n in tile t. |
| 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 at the
current reconstruction resolution level.
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 partition 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 at the
current reconstruction resolution level.
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 calls the same method on the source.
|
| setImgResLevel | | public void setImgResLevel(int rl)(Code) | | Sets the image reconstruction resolution level. A value of 0 means
reconstruction of an image with the lowest resolution (dimension)
available.
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.
Parameters:
rl - The image resolution level. The vertical coordinate of the image origin in the canvassystem, on the reference grid. |
| setTile | | public void setTile(int x, int y)(Code) | | Changes the current tile, given the new indices. An
IllegalArgumentException is thrown if the coordinates do not correspond
to a valid tile.
This default implementation calls the same method on the source.
Parameters:
x - The horizontal index of the tile.
Parameters:
y - The vertical index of the new tile. |
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