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Calc Patch Label Map
Description
This functor labels patches of cells using sequential numbers. A patch consists of a continuous group of neighboring cells of the same category.
Inputs
| Name | Type | Description |
|---|---|---|
| Source | Map | Map whose non-null cells correspond to an occurrence of a category. |
Optional Inputs
| Name | Type | Description | Default Value |
|---|---|---|---|
| Initial Patch Label | Int | Initial number used to label the first patch found on the map. | 1 |
| Only Orthogonals Are Allowed | Bool | If true, only orthogonal cells will be considered first order neighbors. | False |
| Window Lines | Positive Int | Number of lines of the neighbor search window. | 3 |
| Window Columns | Positive Int | Number of columns of the neighbor search window. | 3 |
| Cell Type | Cell Type | Data cell type. | Signed 32 Bit Integer |
| Null Value | Int | Null value. | 3 |
| Patch Labels Are Sparse | Bool | If true, the map is loaded as a sparse image. Sparse images have the advantage of storing only the cells containing non-null values, but they have diminished access time. | False |
Output
| Name | Type | Description |
|---|---|---|
| Patch Labels | Categorical Map | Map showing each group of cells as a patch identified by a label. It has the same dimensions as the source map. |
Group
Notes
The use of windows bigger than 3×3 allows disjoint cells to be considered as neighbors.
Internal Name
CalcPatchLabelMap