Parameters
- c
- The index of the component, from 0 to N-1.
- rl
- The resolution level, from 0 to L.
Return Value
The width in pixels of component c in the overall image.
Note: Component resolution level indexes may differ from tile-component resolution index. They are indeed indexed starting from the lowest number of decomposition levels of same component of each tile.
Example: For an image (2 tiles) with 1 component (tile 0 having 2 decomposition levels and tile 1 having 3 decomposition levels), the first tile(-component) has 3 resolution levels and the second one has 4 resolution levels, whereas the component has only 3 resolution levels available.