Normalized difference index — wbt_normalized_difference

Calculate a normalized-difference index (NDI) from two bands of multispectral image data.

Usage

wbt_normalized_difference_index(
  input1,
  input2,
  output,
  clip = 0,
  correction = 0,
  wd = NULL,
  verbose_mode = NULL,
  compress_rasters = NULL,
  command_only = FALSE
)

Arguments

input1: Input image 1 (e.g. near-infrared band).
input2: Input image 2 (e.g. red band).
output: Output raster file.
clip: Optional amount to clip the distribution tails by, in percent.
correction: Optional adjustment value (e.g. 1, or 0.16 for the optimal soil adjusted vegetation index, OSAVI).
wd: Changes the working directory. Default: NULL will use the value in WhiteboxTools settings, see wbt_wd() for details.
verbose_mode: Sets verbose mode. If verbose mode is FALSE, tools will not print output messages. Default: NULL will use the value in WhiteboxTools settings, see wbt_verbose() for details.
compress_rasters: Sets the flag used by 'WhiteboxTools' to determine whether to use compression for output rasters. Default: NULL will use the value in WhiteboxTools settings, see wbt_compress_rasters() for details.
command_only: Return command that would be executed by system() rather than running tool. Default: FALSE.

Value

Returns the tool text outputs.