5 |
|
set Ldmax=100 # maximum display luminance |
6 |
|
set nsteps=100 # number of steps in perceptual histogram |
7 |
|
set cvratio=0.05 # fraction of pixels to ignore in envelope clipping |
8 |
< |
set td=/usr/tmp |
8 |
> |
set td=/tmp |
9 |
|
set tf0=$td/tf$$ |
10 |
|
set tf1=$td/hist$$ |
11 |
|
set tf1b=$td/hist$$.diff |
18 |
|
shift argv |
19 |
|
endif |
20 |
|
if ( $#argv != 1 ) then |
21 |
< |
echo "Usage: $0 [-a] input.pic > output.pic" |
21 |
> |
echo "Usage: $0 [-a] input.hdr > output.hdr" |
22 |
|
exit 1 |
23 |
|
endif |
24 |
|
set ifile=$1 |
25 |
|
set ibase=$ifile:t |
26 |
< |
if ( "$ibase" =~ *.pic ) set ibase=$ibase:r |
26 |
> |
if ( "$ibase" =~ *.hdr ) set ibase=$ibase:r |
27 |
|
set ibase=$ibase:t |
28 |
|
onintr quit |
29 |
|
pextrem -o $ifile > $tf0 |