perform_PCA: Performs PCA for all images and create PCA file with either...

In jbferet/biodivMapR: biodivMapR: an R package for a- and ß-diversity mapping using remotely-sensed images

Performs PCA for all images and create PCA file with either all or a selection of PCs

Description

Performs PCA for all images and create PCA file with either all or a selection of PCs

Usage

perform_PCA(
  input_raster_path,
  output_dir,
  input_rast_wl = NULL,
  input_mask_path = NULL,
  Continuum_Removal = TRUE,
  TypePCA = "SPCA",
  NbPCs_To_Keep = 30,
  Excluded_WL = NULL,
  nbPix_PCA = 1e+06,
  nbIter = 20,
  maxRows = 100,
  filetype = "GTiff"
)

Arguments

input_raster_path	character. path for image to be processed
output_dir	character. Path for output directory
input_rast_wl	numeric. spectral bands corresponding to input_raster_path
input_mask_path	character. path for mask corresponding to the image
Continuum_Removal	boolean. Set to TRUE if continuum removal should be applied
TypePCA	character. Type of PCA: choose either "PCA" or "SPCA"
NbPCs_To_Keep	numeric. number of components to ke saved in the PCA file. default = 30 if set to FALSE (or nb PC if <30)
Excluded_WL	numeric. Water Vapor Absorption domains (in nanometers, min and max WL). Can also be used to exclude spectific domains. dims = N x 2 (N = number of domains to be eliminated)
nbPix_PCA	numeric. number of pixels to use to compute PCA
nbIter	numeric. nb of iterations averaged to compute diversity indices
maxRows	numeric. max number of rows in each block
filetype	character. gdal driver

Value

list of paths corresponding to resulting PCA files

jbferet/biodivMapR documentation built on April 12, 2025, 1:32 p.m.