Package index • saltbush

Drone imagery processing

Build multiband images, mask non-vegetation pixels, and extract per-AOI pixel values from drone imagery.

create_multiband_image(): Create a multiband image from single-band TIF files
create_masked_raster(): Create masked raster from multiband image
find_optimum_thresholds(): Find optimum thresholds

Spectral diversity

Calculate coefficient of variation (CV), spectral variance (SV), and convex hull volume (CHV) directly from drone imagery.

calculate_spectral_metrics(): Calculate spectral metrics

On-the-ground diversity

Compute taxonomic-diversity metrics from AusPlots point-intercept survey data.

calculate_field_diversity(): Calculate field diversity

Example data

Datasets bundled with the package for use in examples, tests, and the vignette.

synthetic_survey: Synthetic point-intercept survey data
ausplots_NSABHC0009: Cached AusPlots point-intercept data for site NSABHC0009
cover_survey: Synthetic percent-cover survey data