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orig/pgblur.csh
author Axel Jacobs <axel@jaloxa.eu>
Sun, 26 Jun 2011 16:59:38 +0100
changeset 13 ccfb8a3410da
parent 0 0aa115157c9c
permissions -rw-r--r--
Made falsecolor.pl executable.
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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#!/bin/csh -f
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# RCSid $Id: pgblur.csh,v 1.2 2008/11/10 19:08:19 greg Exp $
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#
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# Apply Gaussian blur without resizing image
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# More efficient than straight pfilt for large blurs
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#
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if ( $#argv != 3 ) then
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	goto userr
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endif
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if ( "$1" != "-r" ) then
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	goto userr
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endif
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if ( "$2" !~ [1-9]* ) then
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	goto userr
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endif
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set rad = $2
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set inp = "$3"
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set reduc = `ev "floor($rad/1.8)"`
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if ( $reduc <= 1 ) then
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	exec pfilt -1 -r $rad $inp:q
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endif
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set filt = `ev "$rad/$reduc"`
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set pr=`getinfo -d < $inp:q | sed 's/^-Y \([1-9][0-9]*\) +X \([1-9][0-9]*\)$/\2 \1/'`
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pfilt -1 -x /$reduc -y /$reduc $inp:q \
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	| pfilt -1 -r $filt -x $pr[1] -y $pr[2]
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exit 0
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userr:
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echo Usage: "$0 -r radius input.hdr"
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exit 1
csh2perl