Help for TIMSPIX
TIMSPIX is a procedure designed to process TIMS picture products
in a throughput manner, beginning with the TIMS tapes provided by NASA's
Ames Research Center and Stennis Space Center (formerly called National
Science and Technology Lab, or NSTL) SSC (NSTL). There are eleven (11)
possible outputs from this procedure: one byte-format file of image data
(*.PIX), one real-format file of auxilliary calibration data (*.AUX), six
halfword-format files of radiance data (*.B1 through *.B6), and three byte-
format D-stretched image files with playback masks (*.RED, *.GRN, *.BLU).
A panorama correction may be performed on the D-stretched images.
The user has the option of calibrating the TIMS imagery or performing
the D-stretch processing on the raw data. The default is to perform the
calibration: this produces the six *.B* files. The calibrated, halfword
data is mapped to byte format prior to the D-stretch. The user may specify the
region of the image used to map the halfword data to byte data, the default
is to use the entire image.
The user may specify up to 10 subareas for use as training sites for
the D-stretch procedure. The default is to use the enitre image as the
source for the statistics.
The user may also specify the strip length used to create the playback
image. If no stripping is desired, the strip length should be set to the
number of scanlines in the flightline. The default is set at 3500 lines
per strip.
IMPORTANT NOTE: TIMSPIX uses scratch files, which are deleteed at the
end of the procedure. If you have any files with the name RAWFILE, IRADFILE,
or SCRTCH* (in caps), THEY WILL BE DELETED!!!
Cognizant Programmer: Vince Realmuto 9 OCT 1990
Modified by Vince Realmuto 5 MAY 1993
PARAMETERS:
NAME
root name for the input and
output files, i.e. MONO3 for
MONO3.PIX and MONO3.AUX
SYM_NAME
symbolic name for tape device,
as defined by VICAR proc TMOUNT
FLT_NAME
name of the flight line
NASA_CNTR
NASA center responsible for the
TIMS flight, AMES or NSTL (SSC)
FILE_NUM
position of file on raw TIMS
data tape
N_LINE
number of scan lines of TIMS
data in data file
CALMODE
calibration option
(CAL or NOCAL)
FITAREA
optional subarea for calc. of
stats used in conversion of
halfword data to byte data
DSTAREA
optional training areas for the
D-stretch (max. of 10 subareas)
RECT
optional aspect ratio
correction; default is
to do no correction.
ASPECT
aspect (H/V) ratio used in the
panorama correction
LENGTH
length of the strip used in
playback
DATE
Date of data acquisition. Used
to override the date in the
VICAR label (yymmdd)
See Examples:
Cognizant Programmer: