This function allows ENVI data import.
read_envi(
file,
header = NULL,
spectral_smooth = F,
sigma = c(1, 1, 1),
metadata = list(file_name = basename(file), user_name = NULL, contact_info = NULL,
organization = NULL, citation = NULL, spectrum_type = NULL, spectrum_identity = NULL,
material_form = NULL, material_phase = NULL, material_producer = NULL,
material_purity = NULL, material_quality = NULL, material_color = NULL,
material_other = NULL, cas_number = NULL, instrument_used = NULL,
instrument_accessories = NULL, instrument_mode = NULL, spectral_resolution = NULL,
laser_light_used = NULL, number_of_accumulations = NULL,
total_acquisition_time_s = NULL, data_processing_procedure = NULL,
level_of_confidence_in_identification = NULL, other_info = NULL, license =
"CC BY-NC"),
...
)An OpenSpecy object.
name of the binary file.
name of the ASCII header file. If NULL, the name of the
header file is guessed by looking for a second file with the same basename as
file but with .hdr extension.
logical value determines whether spectral smoothing will be performed.
if spectral_smooth then this option applies the 3d
standard deviations for the gaussianSmooth function from the
mmand package to describe how spectral smoothing occurs on each dimension.
The first two dimensions are x and y, the third is the wavenumbers.
a named list of the metadata; see
as_OpenSpecy() for details.
further arguments passed to the submethods.
Zacharias Steinmetz, Claudia Beleites
ENVI data usually consists of two files, an ASCII header and a binary data
file. The header contains all information necessary for correctly reading
the binary file via read.ENVI().
read_spec() for reading .y(a)ml, .json, or .rds (OpenSpecy)
files;
read_text(), read_asp(), read_spa(),
read_spc(), and read_jdx() for text files, .asp,
.spa, .spa, .spc, and .jdx formats, respectively;
read_opus() for reading .0 (OPUS) files;
read_zip() and read_any() for wrapper functions;
read.ENVI()
gaussianSmooth()