This tool will measure the edge proportion, i.e. the proportion of grid cells in a patch that are located along the patch's boundary, for an input raster image (`input`). Edge proportion is an indicator of polygon shape complexity and elongation. The user must specify the name of the output raster file (`output`), which will be raster layer containing the input features assigned the edge proportion. The user may also optionally choose to output text data for easy input to a spreadsheet or database.

Objects in the input raster are designated by their unique identifiers. Identifier values must be positive, non-zero whole numbers.

## See Also

shape_complexity_index_raster, linearity_index, elongation_ratio

## Function Signature

`def edge_proportion(self, raster: Raster) -> Tuple[Raster, str]: ...`

## Project Links

WbW Homepage User Manual Support WbW