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greg |
1.1 |
#!/bin/csh -f
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# SCCSid "$SunId$ LBL"
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#
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greg |
1.2 |
# Normalize a pattern for tiling (-b option blends edges) by removing
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# lowest frequencies from image and reducing to standard size (-r option)
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greg |
1.1 |
#
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greg |
1.2 |
set pf="pfilt -e 2"
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while ($#argv > 0)
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switch ($argv[1])
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case -r:
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shift argv
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set pf="$pf -x $argv[1] -y $argv[1] -p 1"
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breaksw
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case -b:
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set blend
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breaksw
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greg |
1.3 |
case -v:
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set verb
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breaksw
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greg |
1.2 |
case -*:
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echo bad option $argv[1]
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exit 1
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default:
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goto dofiles
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endsw
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shift argv
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end
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dofiles:
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onintr quit
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set td=/usr/tmp/np$$
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mkdir $td
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set ha=$0
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set ha=$ha:t
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if ( $?blend ) then
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set ha="$ha -b"
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else
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mknod $td/hf p
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endif
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greg |
1.4 |
cat > $td/coef.fmt << '_EOF_'
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rcx=${ $1 }; rcy=${ $2 }; rsx=${ $3 }; rsy=${ $4 };
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rcxcy=${ $5 }; rcxsy=${ $6 }; rsxcy=${ $7 }; rsxsy=${ $8 };
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gcx=${ $9 }; gcy=${ $10 }; gsx=${ $11 }; gsy=${ $12 };
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gcxcy=${ $13 }; gcxsy=${ $14 }; gsxcy=${ $15 }; gsxsy=${ $16 };
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bcx=${ $17 }; bcy=${ $18 }; bsx=${ $19 }; bsy=${ $20 };
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bcxcy=${ $21 }; bcxsy=${ $22 }; bsxcy=${ $23 }; bsxsy=${ $24 };
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'_EOF_'
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cat > $td/coef.cal << '_EOF_'
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$1=$3*2*cx; $2=$3*2*cy; $3=$3*2*sx; $4=$3*2*sy;
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$5=$3*4*cx*cy; $6=$3*4*cx*sy; $7=$3*4*sx*cy; $8=$3*4*sx*sy;
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$9=$4*2*cx; $10=$4*2*cy; $11=$4*2*sx; $12=$4*2*sy;
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$13=$4*4*cx*cy; $14=$4*4*cx*sy; $15=$4*4*sx*cy; $16=$4*4*sx*sy;
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$17=$5*2*cx; $18=$5*2*cy; $19=$5*2*sx; $20=$5*2*sy;
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$21=$5*4*cx*cy; $22=$5*4*cx*sy; $23=$5*4*sx*cy; $24=$5*4*sx*sy;
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cx=cos(wx); cy=cos(wy);
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sx=sin(wx); sy=sin(wy);
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wx=2*PI*($1+.5)/xres; wy=2*PI*($2+.5)/yres;
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'_EOF_'
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cat > $td/fsub.cal << '_EOF_'
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ro=ri(1)-rcx*cx-rcy*cy-rsx*sx-rsy*sy
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-rcxcy*cx*cy-rcxsy*cx*sy-rsxcy*sx*cy-rsxsy*sx*sy;
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go=gi(1)-gcx*cx-gcy*cy-gsx*sx-gsy*sy
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-gcxcy*cx*cy-gcxsy*cx*sy-gsxcy*sx*cy-gsxsy*sx*sy;
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bo=bi(1)-bcx*cx-bcy*cy-bsx*sx-bsy*sy
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-bcxcy*cx*cy-bcxsy*cx*sy-bsxcy*sx*cy-bsxsy*sx*sy;
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cx=cos(wx); cy=cos(wy);
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sx=sin(wx); sy=sin(wy);
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wx=2*PI*(x+.5)/xres; wy=2*PI*(y+.5)/yres;
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PI=3.14159265358979323846;
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'_EOF_'
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greg |
1.1 |
foreach f ($*)
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greg |
1.3 |
if ( $?verb ) then
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echo $f\:
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echo adjusting exposure/size...
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endif
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greg |
1.2 |
$pf $f > $td/pf
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getinfo < $td/pf > $f
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ed - $f << _EOF_
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i
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$ha
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.
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w
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q
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_EOF_
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greg |
1.3 |
set resolu=`getinfo -d < $td/pf | sed 's/-Y \([0-9]*\) +X \([0-9]*\)/\2 \1/'`
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if ( $?verb ) then
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echo computing Fourier coefficients...
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endif
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greg |
1.4 |
pfilt -1 -x 32 -y 32 $td/pf | pvalue -h \
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| rcalc -f $td/coef.cal -e 'xres=32;yres=32' \
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| total -m | rcalc -o $td/coef.fmt \
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> $td/coef
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greg |
1.3 |
if ( $?verb ) then
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greg |
1.4 |
cat $td/coef
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greg |
1.3 |
echo removing low frequencies...
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endif
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greg |
1.2 |
if ( ! $?blend ) then
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greg |
1.3 |
( getinfo - < $td/hf >> $f & ) > /dev/null
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greg |
1.2 |
endif
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greg |
1.4 |
pcomb -f $td/fsub.cal -f $td/coef \
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-e "xres=$resolu[1];yres=$resolu[2]" \
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greg |
1.2 |
$td/pf > $td/hf
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if ( $?blend ) then
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| 103 |
greg |
1.3 |
if ( $?verb ) then
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echo blending edges...
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endif
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greg |
1.2 |
@ mar= $resolu[1] - 3
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pcompos -x 3 $td/hf 0 0 > $td/left
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pcompos $td/hf -$mar 0 > $td/right
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pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
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-e 'f(p)=(3-x)/7*p(1)+(4+x)/7*p(2)' \
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$td/right $td/left > $td/left.patch
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pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
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-e 'f(p)=(1+x)/7*p(1)+(6-x)/7*p(2)' \
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$td/left $td/right > $td/right.patch
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pcompos $td/hf 0 0 $td/left.patch 0 0 $td/right.patch $mar 0 \
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> $td/hflr
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@ mar= $resolu[2] - 3
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pcompos -y 3 $td/hflr 0 0 > $td/bottom
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pcompos $td/hflr 0 -$mar > $td/top
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pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
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-e 'f(p)=(3-y)/7*p(1)+(4+y)/7*p(2)' \
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$td/top $td/bottom > $td/bottom.patch
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pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
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-e 'f(p)=(1+y)/7*p(1)+(6-y)/7*p(2)' \
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$td/bottom $td/top > $td/top.patch
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pcompos $td/hflr 0 0 $td/bottom.patch 0 0 $td/top.patch 0 $mar \
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| getinfo - >> $f
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endif
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greg |
1.3 |
if ( $?verb ) then
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echo $f done.
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endif
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greg |
1.1 |
end
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greg |
1.2 |
quit:
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rm -rf $td
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