ASTAT

Measure image statistics.

Format

ASTAT opt coord <keywords>

Parameters

opt

option type:

BOX	rectangular outline (default)
CIR	circular or ellipitical outline
IRR	irregular shaped outline
LIN	outline based on line between 2 points

coord

coordinate type

IC	image coordinates (default) All options are designed to run interactivly on the current image frame
EC	earth coordinates
	EC station dist	surface station location and radius (km) for CIR
	EC lat lon dist	latitude/longitude circle and radius (km) for CIR
	EC LAT=lat1 lat2 LON=lon1 lon2	lat/lon pairs for BOX
	EC stn1 stn2 dist	point to point corridor (km) for LIN

Keywords

AREA=

area number

BAND=

spectral band (default= current frame or, 1st band in area)

COLOR=

graphics color (default=2)

CUT=

lo hi

data range (default=0 10000)

TAIL=

pct

tail percentage 0-100 (default=5%)

HIST=

gframe

plot a histogram on graphics frame (default=no plot)

LAT=

lat1 lat2

latitude range (LON= keyword must also be specified)

LON=

lon1 lon2

longitude range (LAT= keyword must also be specified)

ARC=

deg1 deg2	angular segment of an circle (CIR option only)
	deg1	degrees from 0 to begining of arc segment
	deg2	degrees from 0 to end of arc segment

FORM=

output

format of output statistics

output=1	standard statistics (default)
output=2	standard statistics + BRIT bins
output=3	standard statistics + BRIT bins + BRIT histogram

LEVELS=

nbin min max

longitude range (LAT= keyword must also be specified)

UNIT=BRIT only
nbin	number of bins (defaults: VGA=13, WWW=16, TOWR=16)
min	minimum brightness level (default=0)
max	maximum brightness level (default=255)

BATCH=

stat_cond value batchfile
execute batch file on condition =TRUE stat_cond = statistic + conditional test (eg: MAX_GE) value = value of "stat" to test against batchfile = text file containing batch command(s)