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greg |
2.1 |
#!/usr/bin/perl -w
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greg |
2.2 |
# RCSid $Id: phisto.pl,v 2.1 2020/01/03 20:05:14 greg Exp $
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greg |
2.1 |
#
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# Compute foveal histogram for picture set
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#
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# G. Ward
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#
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use strict;
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my $windoz = ($^O eq "MSWin32" or $^O eq "MSWin64");
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use File::Temp qw/ :mktemp /;
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my $minop = 'L=$1*179;$1=if(L-1e-7,log10(L)-.01,-7)';
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my $maxop = '$1=log10($1*179)+.01';
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my $tf;
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if ($windoz) {
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my $tmploc = `echo \%TMP\%`;
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chomp $tmploc;
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$tf = mktemp("$tmploc\\phdXXXXXX");
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chomp $tf;
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if ($#ARGV < 0) {
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system "pfilt -1 -x 128 -y 128 -p 1 " .
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greg |
2.2 |
"| pvalue -O -h -H -d -b > $tf";
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greg |
2.1 |
} else {
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foreach (@ARGV) {
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system "pfilt -1 -x 128 -y 128 -p 1 $_" .
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greg |
2.2 |
"| pvalue -O -h -H -d -b >> $tf";
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greg |
2.1 |
die "Bad picture '$_'\n" if ( $? );
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}
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}
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my $Lmin=`total -l $tf | rcalc -e "$minop"`;
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my $Lmax=`total -u $tf | rcalc -e "$maxop"`;
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chomp $Lmin;
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chomp $Lmax;
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system q[rcalc -e "L=$1*179;cond=L-1e-7;$1=log10(L)" ] . $tf .
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" | histo $Lmin $Lmax 777";
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} else {
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$tf = mktemp("/tmp/phdXXXXXX");
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chomp $tf;
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if ($#ARGV < 0) {
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system "pfilt -1 -x 128 -y 128 -p 1 " .
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greg |
2.2 |
"| pvalue -O -h -H -df -b > $tf";
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greg |
2.1 |
} else {
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foreach (@ARGV) {
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system "pfilt -1 -x 128 -y 128 -p 1 '$_'" .
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greg |
2.2 |
"| pvalue -O -h -H -df -b >> $tf";
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greg |
2.1 |
die "Bad picture '$_'\n" if ( $? );
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}
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}
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my $Lmin=`total -if -l $tf | rcalc -e '$minop'`;
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my $Lmax=`total -if -u $tf | rcalc -e '$maxop'`;
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chomp $Lmin;
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chomp $Lmax;
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system q[rcalc -if -e 'L=$1*179;cond=L-1e-7;$1=log10(L)' ] . $tf .
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" | histo $Lmin $Lmax 777";
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}
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unlink $tf;
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