http://astroa.physics.metu.edu.tr/MANUALS/sextractor/
What is SExtractor?
SExtractor (Source-Extractor) is a program that builds a catalogue of objects from an astronomical image. It is particularly oriented towards reduction of large scale galaxy-survey data, but it also performs well on moderately crowded star fields.
convert landsat_4000_2000_xy_86000_168000.png landsat_4000_2000_xy_86000_168000.fits
sextractor landsat_4000_2000_xy_86000_168000.fits
nice...
Discussion
Kommentti käyttäjältä h4ck3rm1k3 21. August 2009 klo 22.09
## copyright 2009 james michael dupont
## AGPL 3.0
## converts the CATS results into OSM format.
## example usage :
# convert landsat_4000_2000_xy_86000_168000.png -depth 16 landsat_4000_2000_xy_86000_168000.fits
# sextractor landsat_4000_2000_xy_86000_168000.fits
# perl ./convert.pl 86000 168000 test.cat > test.osm
use strict;
use warnings;
# bottom_left
my $basex = shift @ARGV;
my $basey = shift @ARGV;
my $filename = shift @ARGV;
my $tilesize = 2000;
my $topleft = $basey - $tilesize;
my $resolution = 4000;
print '';
my $id = 0;
open IN, $filename;
while ()
{
next if /\#/;
my ($test,$X_IMAGE,$Y_IMAGE,$X2,$Y2) = split (/\s+/);
print "\n";
$id --;
# print join ("!",($NUMBER,$FLUXERR_ISO,$FLUX_AUTO,$FLUXERR_AUTO,$X_IMAGE,$Y_IMAGE,$FLAGS)) . "\n";
my $newy = ($topleft + $Y_IMAGE) / $resolution;
my $newx = ($basex + $X_IMAGE) / $resolution;
my $newy2 = ($topleft + $Y2) / $resolution;
my $newx2 = ($basex + $X2) / $resolution;
# print "Data:" . $Y_IMAGE . "/" . $X_IMAGE . "\n";
print "\n";
$id --;
print "\n";
$id --;
print "\n";
$id --;
print "\n";
$id --;
my $id1 = $id + 4;
my $id2 = $id + 3;
my $id3 = $id + 2;
my $id4 = $id + 1;
print "
";
#print $newy . "/" . $newx . "\n";
}
print "";
close IN;
Kommentti käyttäjältä h4ck3rm1k3 21. August 2009 klo 22.17
well, of course you need to swap lat and long... doh.
Kommentti käyttäjältä robert 22. August 2009 klo 00.05
Sex Tractor?
Kommentti käyttäjältä h4ck3rm1k3 24. August 2009 klo 05.24
LOL
Kommentti käyttäjältä h4ck3rm1k3 24. August 2009 klo 05.24
it turns out that the coords are shifted over my 0.5 much. I need to look into this more.
Kommentti käyttäjältä Milliams 24. August 2009 klo 22.45
Oh the laughs we had when we first heard of SExtractor :)