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1 #!/bin/csh -f |
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2 # RCSid: $Id: normpat.csh,v 2.7 2008/08/25 04:50:32 greg Exp $ |
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3 # |
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4 # Normalize a pattern for tiling (-b option blends edges) by removing |
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5 # lowest frequencies from image (-f option) and reducing to |
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6 # standard size (-r option) |
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7 # |
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8 set ha=$0 |
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9 set ha=$ha:t |
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10 set pf="pfilt -e 2" |
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11 while ($#argv > 0) |
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12 switch ($argv[1]) |
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13 case -r: |
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14 shift argv |
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15 set pf="$pf -x $argv[1] -y $argv[1] -p 1 -r .67" |
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16 breaksw |
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17 case -f: |
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18 set ha="$ha -f" |
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19 set dofsub |
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20 breaksw |
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21 case -b: |
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22 set ha="$ha -b" |
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23 set blend |
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24 breaksw |
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25 case -v: |
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26 set verb |
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27 breaksw |
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28 case -*: |
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29 echo bad option $argv[1] |
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30 exit 1 |
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31 default: |
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32 goto dofiles |
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33 endsw |
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34 shift argv |
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35 end |
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36 dofiles: |
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37 onintr quit |
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38 set td=`mktemp -d /tmp/np.XXXXXX` |
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39 goto skipthis |
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40 cat > $td/coef.fmt << '_EOF_' |
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41 rm:${ $25 }; gm:${ $26 }; bm:${ $27 }; |
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42 rcx:${ $1 }; gcx:${ $9 }; bcx:${ $17 }; |
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43 rcy:${ $2 }; gcy:${ $10 }; bcy:${ $18 }; |
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44 rsx:${ $3 }; gsx:${ $11 }; bsx:${ $19 }; |
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45 rsy:${ $4 }; gsy:${ $12 }; bsy:${ $20 }; |
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46 rcxcy:${ $5 }; gcxcy:${ $13 }; bcxcy:${ $21 }; |
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47 rcxsy:${ $6 }; gcxsy:${ $14 }; bcxsy:${ $22 }; |
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48 rsxcy:${ $7 }; gsxcy:${ $15 }; bsxcy:${ $23 }; |
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49 rsxsy:${ $8 }; gsxsy:${ $16 }; bsxsy:${ $24 }; |
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50 '_EOF_' |
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51 cat > $td/coef.cal << '_EOF_' |
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52 $1=$3*2*cx; $2=$3*2*cy; $3=$3*2*sx; $4=$3*2*sy; |
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53 $5=$3*4*cx*cy; $6=$3*4*cx*sy; $7=$3*4*sx*cy; $8=$3*4*sx*sy; |
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54 $9=$4*2*cx; $10=$4*2*cy; $11=$4*2*sx; $12=$4*2*sy; |
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55 $13=$4*4*cx*cy; $14=$4*4*cx*sy; $15=$4*4*sx*cy; $16=$4*4*sx*sy; |
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56 $17=$5*2*cx; $18=$5*2*cy; $19=$5*2*sx; $20=$5*2*sy; |
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57 $21=$5*4*cx*cy; $22=$5*4*cx*sy; $23=$5*4*sx*cy; $24=$5*4*sx*sy; |
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58 $25=$3; $26=$4; $27=$5; |
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59 cx=cos(wx); cy=cos(wy); |
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60 sx=sin(wx); sy=sin(wy); |
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61 wx=2*PI/xres*($1+.5); wy=2*PI/yres*($2+.5); |
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62 '_EOF_' |
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63 cat > $td/fsub.cal << '_EOF_' |
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64 PI:3.14159265358979323846; |
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65 ro=ri(1)*rm/(rm+rcx*cx+rcy*cy+rsx*sx+rsy*sy |
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66 +rcxcy*cx*cy+rcxsy*cx*sy+rsxcy*sx*cy+rsxsy*sx*sy); |
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67 go=gi(1)*gm/(gm+gcx*cx+gcy*cy+gsx*sx+gsy*sy |
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68 +gcxcy*cx*cy+gcxsy*cx*sy+gsxcy*sx*cy+gsxsy*sx*sy); |
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69 bo=bi(1)*bm/(bm+bcx*cx+bcy*cy+bsx*sx+bsy*sy |
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70 +bcxcy*cx*cy+bcxsy*cx*sy+bsxcy*sx*cy+bsxsy*sx*sy); |
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71 cx=cos(wx); cy=cos(wy); |
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72 sx=sin(wx); sy=sin(wy); |
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73 wx=2*PI/xres*(x+.5); wy=2*PI/yres*(y+.5); |
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74 '_EOF_' |
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75 skipthis: |
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76 foreach f ($*) |
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77 if ( $?verb ) then |
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78 echo $f\: |
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79 echo adjusting exposure/size... |
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80 endif |
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81 $pf $f > $td/pf |
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82 getinfo < $td/pf > $f |
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83 ed - $f << _EOF_ |
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84 i |
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85 $ha |
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86 . |
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87 w |
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88 q |
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89 _EOF_ |
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90 set resolu=`getinfo -d < $td/pf | sed 's/-Y \([1-9][0-9]*\) +X \([1-9][0-9]*\)/\2 \1/'` |
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91 if ( ! $?dofsub ) then |
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92 mv $td/pf $td/hf |
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93 goto donefsub |
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94 endif |
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95 # if ( $?verb ) then |
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96 # echo computing Fourier coefficients... |
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97 # endif |
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98 # pfilt -1 -x 32 -y 32 $td/pf | pvalue -h \ |
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99 # | rcalc -e 'xres:32;yres:32' -f $td/coef.cal \ |
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100 # | total -m | rcalc -o $td/coef.fmt \ |
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101 # > $td/coef |
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102 if ( $?verb ) then |
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103 # cat $td/coef |
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104 echo removing low frequencies... |
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105 endif |
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106 pgblur -r `ev "sqrt($resolu[1]*$resolu[2])/8"` $td/pf > $td/lf |
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107 pcomb -e 's=1/li(2);ro=s*ri(1);go=s*gi(1);bo=s*bi(1)' \ |
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108 $td/pf $td/lf > $td/hf |
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109 # pcomb -f $td/coef -f $td/fsub.cal $td/pf > $td/hf |
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110 donefsub: |
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111 if ( $?blend ) then |
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112 if ( $?verb ) then |
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113 echo blending edges... |
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114 endif |
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115 @ mar= $resolu[1] - 3 |
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116 @ les= $resolu[1] - 1 |
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117 pcompos -x 1 $td/hf 0 0 | pfilt -1 -x 3 > $td/left |
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118 pcompos $td/hf -$les 0 | pfilt -1 -x 3 > $td/right |
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119 pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \ |
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120 -e 'f(p)=(3-x)/7*p(1)+(4+x)/7*p(2)' \ |
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121 $td/right $td/left > $td/left.patch |
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122 pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \ |
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123 -e 'f(p)=(1+x)/7*p(1)+(6-x)/7*p(2)' \ |
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124 $td/left $td/right > $td/right.patch |
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125 pcompos $td/hf 0 0 $td/left.patch 0 0 $td/right.patch $mar 0 \ |
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126 > $td/hflr |
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127 @ mar= $resolu[2] - 3 |
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128 @ les= $resolu[2] - 1 |
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129 pcompos -y 1 $td/hflr 0 0 | pfilt -1 -y 3 > $td/bottom |
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130 pcompos $td/hflr 0 -$les | pfilt -1 -y 3 > $td/top |
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131 pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \ |
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132 -e 'f(p)=(3-y)/7*p(1)+(4+y)/7*p(2)' \ |
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133 $td/top $td/bottom > $td/bottom.patch |
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134 pcomb -e 'ro=f(ri);go=f(gi);bo=f(bi)' \ |
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135 -e 'f(p)=(1+y)/7*p(1)+(6-y)/7*p(2)' \ |
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136 $td/bottom $td/top > $td/top.patch |
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137 pcompos $td/hflr 0 0 $td/bottom.patch 0 0 $td/top.patch 0 $mar \ |
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138 | getinfo - >> $f |
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139 else |
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140 getinfo - < $td/hf >> $f |
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141 endif |
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142 if ( $?verb ) then |
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143 echo $f done. |
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144 endif |
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145 end |
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146 quit: |
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147 rm -rf $td |