XOOPS RMCommon Utilities  2.1.8.91RC
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color.php
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1 <?php
2 /*
3  +--------------------------------------------------------------------------------------------+
4  | DISCLAIMER - LEGAL NOTICE - |
5  +--------------------------------------------------------------------------------------------+
6  | |
7  | This program is free for non comercial use, see the license terms available at |
8  | http://www.francodacosta.com/licencing/ for more information |
9  | |
10  | This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
11  | without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
12  | |
13  | USE IT AT YOUR OWN RISK |
14  | |
15  | |
16  +--------------------------------------------------------------------------------------------+
17 
18 */
30 class phMagick_color {
31  function darken(phmagick $p ,$alphaValue = 50){
32  $percent = 100 - (int) $alphaValue;
33 
34  //get original file dimentions
35 
36  list ($width, $height) = $p->getInfo();
37 
38  $cmd = $p->getBinary('composite');
39  $cmd .= ' -blend ' . $percent . ' ';
40  $cmd .= '"'.$p->getSource().'"';
41  $cmd .= ' -size '. $width .'x'. $height.' xc:black ';
42  $cmd .= '-matte "' . $p->getDestination().'"' ;
43 
44  $p->execute($cmd);
45  $p->setSource($p->getDestination());
46  $p->setHistory($p->getDestination());
47  return $p ;
48  }
49 
59  function brighten(phmagick $p, $alphaValue = 50){
60 
61  $percent = 100 - (int) $alphaValue;
62 
63  //get original file dimentions
64 
65  list ($width, $height) = $p->getInfo();
66 
67  $cmd = $p->getBinary('composite');
68  $cmd .= ' -blend ' . $percent . ' ';
69  $cmd .= '"'.$p->getSource().'"';
70  $cmd .= ' -size '. $width .'x'. $height.' xc:white ';
71  $cmd .= '-matte "' . $p->getDestination().'"' ;
72 
73  $p->execute($cmd);
74  $p->setSource($p->getDestination());
75  $p->setHistory($p->getDestination());
76  return $p ;
77  }
78 
82 // function toGrayScale(phmagick $p){
83 // $cmd = $p->getBinary('convert');
84 // $cmd .= ' "' . $p->getSource() .'"';
85 // $cmd .= ' -colorspace Gray ';
86 // $cmd .= ' "' . $p->getDestination().'"' ;
87 //
88 // $p->execute($cmd);
89 // $p->setSource($p->getDestination());
90 // $p->setHistory($p->getDestination());
91 // return $p ;
92 // }
93 
94  function toGreyScale(phmagick $p, $enhance=2){
95  $cmd = $p->getBinary('convert');
96  $cmd .= ' -modulate 100,0 ' ;
97  $cmd .= ' -sigmoidal-contrast '.$enhance.'x50%' ;
98  $cmd .= ' -background "none" "' . $p->getSource().'"' ;
99  $cmd .= ' "' . $p->getDestination() .'"';
100 
101  $p->execute($cmd);
102  $p->setSource($p->getDestination());
103  $p->setHistory($p->getDestination());
104  return $p ;
105  }
106 
110  function invertColors(phmagick $p){
111  $cmd = $p->getBinary('convert');
112  $cmd .= ' "' . $p->getSource() .'"';
113  $cmd .= ' -negate ';
114  $cmd .= ' "' . $p->getDestination() .'"';
115 
116  $p->execute($cmd);
117  $p->setSource($p->getDestination());
118  $p->setHistory($p->getDestination());
119  return $p ;
120  }
121 
122  function sepia(phmagick $p, $tone = 90){
123  $cmd = $p->getBinary('convert');
124  $cmd .= ' -sepia-tone '. $tone .'% ' ;
125  $cmd .= ' -modulate 100,50 ' ;
126  $cmd .= ' -normalize ' ;
127  $cmd .= ' -background "none" "' . $p->getSource() .'"' ;
128  $cmd .= ' "' . $p->getDestination().'"' ;
129  $p->execute($cmd);
130  $p->setSource($p->getDestination());
131  $p->setHistory($p->getDestination());
132  return $p ;
133  }
134 
135  function autoLevels(phmagick $p){
136  $cmd = $p->getBinary('convert');
137  $cmd .= ' -normalize ' ;
138  $cmd .= ' -background "none" "' . $p->getSource().'"' ;
139  $cmd .= ' "' . $p->getDestination() .'"' ;
140 
141  $p->execute($cmd);
142  $p->setSource($p->getDestination());
143  $p->setHistory($p->getDestination());
144  return $p ;
145  }
146 
147 }
148 ?>