--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/orig/normpat.csh Sat Apr 09 17:55:16 2011 +0100
@@ -0,0 +1,147 @@
+#!/bin/csh -f
+# RCSid: $Id: normpat.csh,v 2.7 2008/08/25 04:50:32 greg Exp $
+#
+# Normalize a pattern for tiling (-b option blends edges) by removing
+# lowest frequencies from image (-f option) and reducing to
+# standard size (-r option)
+#
+set ha=$0
+set ha=$ha:t
+set pf="pfilt -e 2"
+while ($#argv > 0)
+ switch ($argv[1])
+ case -r:
+ shift argv
+ set pf="$pf -x $argv[1] -y $argv[1] -p 1 -r .67"
+ breaksw
+ case -f:
+ set ha="$ha -f"
+ set dofsub
+ breaksw
+ case -b:
+ set ha="$ha -b"
+ set blend
+ breaksw
+ case -v:
+ set verb
+ breaksw
+ case -*:
+ echo bad option $argv[1]
+ exit 1
+ default:
+ goto dofiles
+ endsw
+ shift argv
+end
+dofiles:
+onintr quit
+set td=`mktemp -d /tmp/np.XXXXXX`
+goto skipthis
+cat > $td/coef.fmt << '_EOF_'
+ rm:${ $25 }; gm:${ $26 }; bm:${ $27 };
+ rcx:${ $1 }; gcx:${ $9 }; bcx:${ $17 };
+ rcy:${ $2 }; gcy:${ $10 }; bcy:${ $18 };
+ rsx:${ $3 }; gsx:${ $11 }; bsx:${ $19 };
+ rsy:${ $4 }; gsy:${ $12 }; bsy:${ $20 };
+rcxcy:${ $5 }; gcxcy:${ $13 }; bcxcy:${ $21 };
+rcxsy:${ $6 }; gcxsy:${ $14 }; bcxsy:${ $22 };
+rsxcy:${ $7 }; gsxcy:${ $15 }; bsxcy:${ $23 };
+rsxsy:${ $8 }; gsxsy:${ $16 }; bsxsy:${ $24 };
+'_EOF_'
+cat > $td/coef.cal << '_EOF_'
+$1=$3*2*cx; $2=$3*2*cy; $3=$3*2*sx; $4=$3*2*sy;
+$5=$3*4*cx*cy; $6=$3*4*cx*sy; $7=$3*4*sx*cy; $8=$3*4*sx*sy;
+$9=$4*2*cx; $10=$4*2*cy; $11=$4*2*sx; $12=$4*2*sy;
+$13=$4*4*cx*cy; $14=$4*4*cx*sy; $15=$4*4*sx*cy; $16=$4*4*sx*sy;
+$17=$5*2*cx; $18=$5*2*cy; $19=$5*2*sx; $20=$5*2*sy;
+$21=$5*4*cx*cy; $22=$5*4*cx*sy; $23=$5*4*sx*cy; $24=$5*4*sx*sy;
+$25=$3; $26=$4; $27=$5;
+cx=cos(wx); cy=cos(wy);
+sx=sin(wx); sy=sin(wy);
+wx=2*PI/xres*($1+.5); wy=2*PI/yres*($2+.5);
+'_EOF_'
+cat > $td/fsub.cal << '_EOF_'
+PI:3.14159265358979323846;
+ro=ri(1)*rm/(rm+rcx*cx+rcy*cy+rsx*sx+rsy*sy
+ +rcxcy*cx*cy+rcxsy*cx*sy+rsxcy*sx*cy+rsxsy*sx*sy);
+go=gi(1)*gm/(gm+gcx*cx+gcy*cy+gsx*sx+gsy*sy
+ +gcxcy*cx*cy+gcxsy*cx*sy+gsxcy*sx*cy+gsxsy*sx*sy);
+bo=bi(1)*bm/(bm+bcx*cx+bcy*cy+bsx*sx+bsy*sy
+ +bcxcy*cx*cy+bcxsy*cx*sy+bsxcy*sx*cy+bsxsy*sx*sy);
+cx=cos(wx); cy=cos(wy);
+sx=sin(wx); sy=sin(wy);
+wx=2*PI/xres*(x+.5); wy=2*PI/yres*(y+.5);
+'_EOF_'
+skipthis:
+foreach f ($*)
+ if ( $?verb ) then
+ echo $f\:
+ echo adjusting exposure/size...
+ endif
+ $pf $f > $td/pf
+ getinfo < $td/pf > $f
+ ed - $f << _EOF_
+i
+$ha
+.
+w
+q
+_EOF_
+ set resolu=`getinfo -d < $td/pf | sed 's/-Y \([1-9][0-9]*\) +X \([1-9][0-9]*\)/\2 \1/'`
+ if ( ! $?dofsub ) then
+ mv $td/pf $td/hf
+ goto donefsub
+ endif
+ # if ( $?verb ) then
+ # echo computing Fourier coefficients...
+ # endif
+ # pfilt -1 -x 32 -y 32 $td/pf | pvalue -h \
+ # | rcalc -e 'xres:32;yres:32' -f $td/coef.cal \
+ # | total -m | rcalc -o $td/coef.fmt \
+ # > $td/coef
+ if ( $?verb ) then
+ # cat $td/coef
+ echo removing low frequencies...
+ endif
+ pgblur -r `ev "sqrt($resolu[1]*$resolu[2])/8"` $td/pf > $td/lf
+ pcomb -e 's=1/li(2);ro=s*ri(1);go=s*gi(1);bo=s*bi(1)' \
+ $td/pf $td/lf > $td/hf
+ # pcomb -f $td/coef -f $td/fsub.cal $td/pf > $td/hf
+ donefsub:
+ if ( $?blend ) then
+ if ( $?verb ) then
+ echo blending edges...
+ endif
+ @ mar= $resolu[1] - 3
+ @ les= $resolu[1] - 1
+ pcompos -x 1 $td/hf 0 0 | pfilt -1 -x 3 > $td/left
+ pcompos $td/hf -$les 0 | pfilt -1 -x 3 > $td/right
+ pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
+ -e 'f(p)=(3-x)/7*p(1)+(4+x)/7*p(2)' \
+ $td/right $td/left > $td/left.patch
+ pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
+ -e 'f(p)=(1+x)/7*p(1)+(6-x)/7*p(2)' \
+ $td/left $td/right > $td/right.patch
+ pcompos $td/hf 0 0 $td/left.patch 0 0 $td/right.patch $mar 0 \
+ > $td/hflr
+ @ mar= $resolu[2] - 3
+ @ les= $resolu[2] - 1
+ pcompos -y 1 $td/hflr 0 0 | pfilt -1 -y 3 > $td/bottom
+ pcompos $td/hflr 0 -$les | pfilt -1 -y 3 > $td/top
+ pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
+ -e 'f(p)=(3-y)/7*p(1)+(4+y)/7*p(2)' \
+ $td/top $td/bottom > $td/bottom.patch
+ pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \
+ -e 'f(p)=(1+y)/7*p(1)+(6-y)/7*p(2)' \
+ $td/bottom $td/top > $td/top.patch
+ pcompos $td/hflr 0 0 $td/bottom.patch 0 0 $td/top.patch 0 $mar \
+ | getinfo - >> $f
+ else
+ getinfo - < $td/hf >> $f
+ endif
+ if ( $?verb ) then
+ echo $f done.
+ endif
+end
+quit:
+rm -rf $td