| Name | Description | |
|---|---|---|
 | ImgHeight | Returns the overall height of the image in pixels. This is the image's height without accounting for any component subsampling or tiling. |
| ImgResLevel | 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. |
| ImgULX | 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. |
| ImgULY | 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. |
| ImgWidth | Returns the overall width of the image in pixels. This is the image's width without accounting for any component subsampling or tiling. |
| NomTileHeight | Returns the nominal height of tiles |
| NomTileWidth | Returns the nominal width of tiles |
| NumComps | Returns the number of components in the image. |
| TileHeight | 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. |
| TileIdx | Returns the index of the current tile, relative to a standard scan-line order.
This default implementation returns the value of the source. |
| TilePartULX | Returns the horizontal tile partition offset in the reference grid |
| TilePartULY | Returns the vertical tile partition offset in the reference grid |
| TileWidth | 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. |
