sobel_operator

Uses a Sobel-Feldman operator (3x3 kernel) to detect internal edges in a SpatRaster object.

Analysis workflow for finding geographic boundaries of ecological or landscape traits and comparing the placement of geographic boundaries of two traits. If data are trait values, trait data are transformed to boundary intensities based on approximate first derivatives across latitude and longitude. The package includes functions to create custom null models based on the input data. The boundary statistics are described in: Fortin, Drapeau, and Jacquez (1996) <doi:10.2307/3545584>.

Amy Luo

BoundaryStats

Boundary Overlap Statistics

Elizabeth Derryberry

sobel_operator function

<dl><dt>x</dt>
<dd>A SpatRaster object.</dd></dl>

Arguments

Author

Sobel-Feldman operator for edge detection — sobel_operator

<dl>

<dt>x</dt>
<dd>A SpatRaster object.</dd>

</dl>

sobel_operator: Sobel-Feldman operator for edge detection

Description

Usage

Value

Arguments

Author

Examples