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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 < $inp:q` |
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pfilt -1 -x /$reduc -y /$reduc $inp:q \ |
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| pfilt -1 -r $filt -x $pr[4] -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 |
