Help for SPECTRUM
PURPOSE:
SPECTRUM produces a plot of DN versus channel or wavelength for a single 3-D
pixel, or of the mean DN for a region specified by one or more rectangular
areas. The plot may be directed to an x-window (via IDL), or to a
PostScript printer.
WRITTEN BY: Ron Alley, May 1989
COGNIZANT PROGRAMMER: Ron Alley
REVISION: 3 - November 8, 1994
PARAMETERS:
INP
Input image file,
Optional wavelength file
BANDS
Starting band, # of bands
SB
Starting band
NB
Number of bands
LINE
Line number of plotted pixel
SAMPLE
Sample number of plotted pixel
XAXIS
Range of x-axis (bands/wavlen)
YAXIS
Range of y-axis (DN's)
AREA
(SL1,SS1,NL1,NS1,...,
SLn,SSn,NLn,NSn)
SENSOR
MASTERTIR, TM, AVIRIS, TIMS,
GEOSCAN, 87AVIRIS, 90AVIRIS
XLABEL
(for laser printer only)
label for for x-axis
YLABEL
(for laser printer only)
label for for y-axis
ST_CHAN
Channel number of first
channel to be plotted
TITLE
Title to be placed on pen plot
CUMUL
Plot the cumulative function
instead of the spectrum
PRINT
Print a table of the values?
(PRINT or NOPRINT)
SIGMA
Plot the 1-std deviation
envelope also?
(SIGMA and NOSIGMA)
EXCLUDE
Exclude zero valued pixels?
(EXCLUDE or NOEXCL)
MODE
use NOPLOT to suppress
plotting and pauses,
use WINDOW to plot in
Xwindow, use PSCRIPT for a
hardcopy plot
See Examples:
Cognizant Programmer: