terra_is_working

<p>This helper attempts the same coordinate reprojection used elsewhere in
the package (via <code><a href="/link/terra%3A%3Aproject()?package=snic&version=0.6.1" data-mini-rdoc="snic::terra::project()">terra::project()</a></code>). When the bundled <code>PROJ</code> /
<code>GDAL</code> data are missing, <code>terra</code> raises an error; here we catch
it and return <code>FALSE</code> so that examples, tests, and vignettes can
skip gracefully.</p>

Implements the Simple Non-Iterative Clustering algorithm for
superpixel segmentation of multi-band images, as introduced by Achanta
and Susstrunk (2017) <doi:10.1109/CVPR.2017.520>. Supports both standard
image arrays and geospatial raster objects, with a design that can be
extended to other spatial data frameworks. The algorithm groups adjacent
pixels into compact, coherent regions based on spectral similarity and
spatial proximity. A high-performance implementation supports images
with arbitrary spectral bands.

Rolf Simoes

snic

Superpixel Segmentation with the Simple Non-Iterative Clustering
Algorithm

Felipe Souza

Felipe Carlos

Gilberto Camara

terra_is_working function

<p>This helper attempts the same coordinate reprojection used elsewhere in
the package (via <code><a href='https://rdrr.io/pkg/terra/man/project.html'>terra::project()</a></code>). When the bundled <code>PROJ</code> /
<code>GDAL</code> data are missing, <code>terra</code> raises an error; here we catch
it and return <code>FALSE</code> so that examples, tests, and vignettes can
skip gracefully.</p>

terra_is_working: Check whether 'terra' CRS transformations are available

Description

Usage

Arguments

Value

Details