2 |
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# SCCSid "$SunId$ LBL" |
3 |
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# |
4 |
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# Normalize a pattern for tiling (-b option blends edges) by removing |
5 |
< |
# lowest frequencies from image and reducing to standard size (-r option) |
5 |
> |
# lowest frequencies from image (-f option) and reducing to |
6 |
> |
# standard size (-r option) |
7 |
|
# |
8 |
+ |
set ha=$0 |
9 |
+ |
set ha=$ha:t |
10 |
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set pf="pfilt -e 2" |
11 |
|
while ($#argv > 0) |
12 |
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switch ($argv[1]) |
14 |
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shift argv |
15 |
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set pf="$pf -x $argv[1] -y $argv[1] -p 1" |
16 |
|
breaksw |
17 |
+ |
case -f: |
18 |
+ |
set ha="$ha -f" |
19 |
+ |
set dofsub |
20 |
+ |
breaksw |
21 |
|
case -b: |
22 |
+ |
set ha="$ha -b" |
23 |
|
set blend |
24 |
|
breaksw |
25 |
+ |
case -v: |
26 |
+ |
set verb |
27 |
+ |
breaksw |
28 |
|
case -*: |
29 |
|
echo bad option $argv[1] |
30 |
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exit 1 |
37 |
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onintr quit |
38 |
|
set td=/usr/tmp/np$$ |
39 |
|
mkdir $td |
40 |
< |
set ha=$0 |
41 |
< |
set ha=$ha:t |
42 |
< |
if ( $?blend ) then |
43 |
< |
set ha="$ha -b" |
44 |
< |
else |
45 |
< |
mknod $td/hf p |
46 |
< |
endif |
40 |
> |
cat > $td/coef.fmt << '_EOF_' |
41 |
> |
rcx=${ $1 }; rcy=${ $2 }; rsx=${ $3 }; rsy=${ $4 }; |
42 |
> |
rcxcy=${ $5 }; rcxsy=${ $6 }; rsxcy=${ $7 }; rsxsy=${ $8 }; |
43 |
> |
gcx=${ $9 }; gcy=${ $10 }; gsx=${ $11 }; gsy=${ $12 }; |
44 |
> |
gcxcy=${ $13 }; gcxsy=${ $14 }; gsxcy=${ $15 }; gsxsy=${ $16 }; |
45 |
> |
bcx=${ $17 }; bcy=${ $18 }; bsx=${ $19 }; bsy=${ $20 }; |
46 |
> |
bcxcy=${ $21 }; bcxsy=${ $22 }; bsxcy=${ $23 }; bsxsy=${ $24 }; |
47 |
> |
'_EOF_' |
48 |
> |
cat > $td/coef.cal << '_EOF_' |
49 |
> |
$1=$3*2*cx; $2=$3*2*cy; $3=$3*2*sx; $4=$3*2*sy; |
50 |
> |
$5=$3*4*cx*cy; $6=$3*4*cx*sy; $7=$3*4*sx*cy; $8=$3*4*sx*sy; |
51 |
> |
$9=$4*2*cx; $10=$4*2*cy; $11=$4*2*sx; $12=$4*2*sy; |
52 |
> |
$13=$4*4*cx*cy; $14=$4*4*cx*sy; $15=$4*4*sx*cy; $16=$4*4*sx*sy; |
53 |
> |
$17=$5*2*cx; $18=$5*2*cy; $19=$5*2*sx; $20=$5*2*sy; |
54 |
> |
$21=$5*4*cx*cy; $22=$5*4*cx*sy; $23=$5*4*sx*cy; $24=$5*4*sx*sy; |
55 |
> |
cx=cos(wx); cy=cos(wy); |
56 |
> |
sx=sin(wx); sy=sin(wy); |
57 |
> |
wx=2*PI*($1+.5)/xres; wy=2*PI*($2+.5)/yres; |
58 |
> |
'_EOF_' |
59 |
> |
cat > $td/fsub.cal << '_EOF_' |
60 |
> |
ro=ri(1)-rcx*cx-rcy*cy-rsx*sx-rsy*sy |
61 |
> |
-rcxcy*cx*cy-rcxsy*cx*sy-rsxcy*sx*cy-rsxsy*sx*sy; |
62 |
> |
go=gi(1)-gcx*cx-gcy*cy-gsx*sx-gsy*sy |
63 |
> |
-gcxcy*cx*cy-gcxsy*cx*sy-gsxcy*sx*cy-gsxsy*sx*sy; |
64 |
> |
bo=bi(1)-bcx*cx-bcy*cy-bsx*sx-bsy*sy |
65 |
> |
-bcxcy*cx*cy-bcxsy*cx*sy-bsxcy*sx*cy-bsxsy*sx*sy; |
66 |
> |
cx=cos(wx); cy=cos(wy); |
67 |
> |
sx=sin(wx); sy=sin(wy); |
68 |
> |
wx=2*PI*(x+.5)/xres; wy=2*PI*(y+.5)/yres; |
69 |
> |
PI=3.14159265358979323846; |
70 |
> |
'_EOF_' |
71 |
|
foreach f ($*) |
72 |
< |
echo $f\: |
73 |
< |
echo adjusting size/exposure... |
72 |
> |
if ( $?verb ) then |
73 |
> |
echo $f\: |
74 |
> |
echo adjusting exposure/size... |
75 |
> |
endif |
76 |
|
$pf $f > $td/pf |
77 |
|
getinfo < $td/pf > $f |
78 |
|
ed - $f << _EOF_ |
82 |
|
w |
83 |
|
q |
84 |
|
_EOF_ |
48 |
– |
if ( ! $?blend ) then |
49 |
– |
getinfo - < $td/hf >> $f & |
50 |
– |
endif |
85 |
|
set resolu=`getinfo -d < $td/pf | sed 's/-Y \([0-9]*\) +X \([0-9]*\)/\2 \1/'` |
86 |
< |
echo computing Fourier coefficients... |
87 |
< |
set coef=`pfilt -1 -x 32 -y 32 $td/pf | pvalue -h -b | rcalc -e '$1=2*$3*cos(wx);$2=2*$3*cos(wy);$3=2*$3*sin(wx);$4=2*$3*sin(wy);$5=4*$3*cos(wx)*cos(wy);$6=4*$3*cos(wx)*sin(wy);$7=4*$3*sin(wx)*cos(wy);$8=4*$3*sin(wx)*sin(wy);' -e 'wx=2*PI/32*$1;wy=2*PI/32*$2' | total -m` |
88 |
< |
echo "cosx cosy sinx siny" |
89 |
< |
echo $coef[1-4] |
90 |
< |
echo "cosx*cosy cosx*siny sinx*cosy sinx*siny" |
91 |
< |
echo $coef[5-8] |
92 |
< |
echo removing low frequencies... |
93 |
< |
pcomb -e 'ro=ri(1)*f;go=gi(1)*f;bo=bi(1)*f;f=1-fc-fs-f0-f1' \ |
94 |
< |
-e "fc=$coef[1]*cos(wx)+$coef[2]*cos(wy)" \ |
95 |
< |
-e "fs=$coef[3]*sin(wx)+$coef[4]*sin(wy)" \ |
96 |
< |
-e "f0=$coef[5]*cos(wx)*cos(wy)+$coef[6]*cos(wx)*sin(wy)" \ |
97 |
< |
-e "f1=$coef[7]*sin(wx)*cos(wy)+$coef[8]*sin(wx)*sin(wy)" \ |
98 |
< |
-e "wx=2*3.1416/$resolu[1]*x;wy=2*3.1416/$resolu[2]*y" \ |
86 |
> |
if ( ! $?dofsub ) then |
87 |
> |
mv $td/pf $td/hf |
88 |
> |
goto donefsub |
89 |
> |
endif |
90 |
> |
if ( $?verb ) then |
91 |
> |
echo computing Fourier coefficients... |
92 |
> |
endif |
93 |
> |
pfilt -1 -x 32 -y 32 $td/pf | pvalue -h \ |
94 |
> |
| rcalc -f $td/coef.cal -e 'xres=32;yres=32' \ |
95 |
> |
| total -m | rcalc -o $td/coef.fmt \ |
96 |
> |
> $td/coef |
97 |
> |
if ( $?verb ) then |
98 |
> |
cat $td/coef |
99 |
> |
echo removing low frequencies... |
100 |
> |
endif |
101 |
> |
pcomb -f $td/fsub.cal -f $td/coef \ |
102 |
> |
-e "xres=$resolu[1];yres=$resolu[2]" \ |
103 |
|
$td/pf > $td/hf |
104 |
+ |
donefsub: |
105 |
|
if ( $?blend ) then |
106 |
< |
echo blending edges... |
106 |
> |
if ( $?verb ) then |
107 |
> |
echo blending edges... |
108 |
> |
endif |
109 |
|
@ mar= $resolu[1] - 3 |
110 |
|
pcompos -x 3 $td/hf 0 0 > $td/left |
111 |
|
pcompos $td/hf -$mar 0 > $td/right |
128 |
|
$td/bottom $td/top > $td/top.patch |
129 |
|
pcompos $td/hflr 0 0 $td/bottom.patch 0 0 $td/top.patch 0 $mar \ |
130 |
|
| getinfo - >> $f |
131 |
+ |
else |
132 |
+ |
getinfo - < $td/hf >> $f |
133 |
|
endif |
134 |
< |
echo $f done. |
134 |
> |
if ( $?verb ) then |
135 |
> |
echo $f done. |
136 |
> |
endif |
137 |
|
end |
138 |
|
quit: |
139 |
|
rm -rf $td |