Read ASD FieldSpec Pro binary and ASCII files

Description

Read single or multiple binary and ASCII files acquired with an ASD FieldSpec Pro (ASDi, Boulder, CO) spectroradiometer

Usage

readASD(fnames,in_format,out_format)

Arguments

Value

if out_format = 'matrix', reflectance values of the input file(s) in a single matrix.

if out_format = 'list', a list of the input file(s) data consisting of a list with components:

• Name name of the file imported

• datetime date and time of acquisition in POSIXct format

• header list with information from the header file

• radiance if applicable, a numeric vector of radiance values

• reference if applicable, a numeric vector of radiance values of the white reference

• reflectance numeric vector of reflectance values

• wavelength numeric vector of the band positions

Note

The is a R port of the ‘importasd.m’ function from the ‘FSFPostProcessing’ Matlab toolbox by Iain Robinson (University of Edinburgh), which is based on some Java code provided by Andreas Hunei (University of Zurich)

It seems that ASD file format has changed quite a lot with file versions. The function will possibly not work as expected for all versions. Please report any bugs to the package maintainer.

Author(s)

Antoine Stevens (R port) and Iain Robinson (matlab function)

References

http://fsf.nerc.ac.uk/user_group/user_group.shtml

http://www.mathworks.com/matlabcentral/fileexchange/31547

Indico Version 8 file format (http://support.asdi.com/Document/Documents.aspx)

Results