| jj2000.j2k.image.ImgData
All known Subclasses: jj2000.j2k.image.ImgDataAdapter,
| ImgData | | public interface ImgData (Code) | | This interface defines methods to access image attributes (width, height,
number of components, etc.). The image can be tiled or not (i.e. if the
image is not tiled then there is only 1 tile). It should be implemented by
all classes that provide image data, such as image file readers, color
transforms, wavelet transforms, etc. This interface, however, does not
define methods to transfer image data (i.e. pixel data), that is defined by
other interfaces, such as 'BlkImgDataSrc'.
See Also: BlkImgDataSrc |
| Method Summary | |
| public int | getCompImgHeight(int c)
Returns the height in pixels of the specified component in the overall
image.
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 | 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.
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 indixes of the current tile. | | public int | getTileCompHeight(int t, int c)
Returns the height in pixels of the specified tile-component.
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 | setTile(int x, int y)
Changes the current tile, given the new indices. |
| getCompImgHeight | | public int getCompImgHeight(int c)(Code) | | Returns the height in pixels of the specified component in the overall
image.
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: 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: 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 index of the component. |
| 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 index of the component. |
| 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.
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.
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. |
| 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.
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.
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.
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.
The total number of tiles in the image. |
| 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.
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.
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
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.
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.
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.
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).
|
| 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.
Parameters:
x - The horizontal index of the tile.
Parameters:
y - The vertical index of the new tile. |
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