|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace Imagecow\Crops; |
|
4
|
|
|
|
|
5
|
|
|
use Imagick; |
|
6
|
|
|
use Imagecow\ImageException; |
|
7
|
|
|
|
|
8
|
|
|
/** |
|
9
|
|
|
* This class is adapted from Stig Lindqvist's great Crop library: |
|
10
|
|
|
* https://github.com/stojg/crop |
|
11
|
|
|
* Copyright (c) 2013, Stig Lindqvist. |
|
12
|
|
|
* |
|
13
|
|
|
* CropFace |
|
14
|
|
|
* |
|
15
|
|
|
* This class will try to find the most interesting point in the image by trying to find a face and |
|
16
|
|
|
* center the crop on that |
|
17
|
|
|
* |
|
18
|
|
|
* @todo implement |
|
19
|
|
|
* @see https://github.com/mauricesvay/php-facedetection/blob/master/FaceDetector.php |
|
20
|
|
|
*/ |
|
21
|
|
|
class Face extends Entropy |
|
22
|
|
|
{ |
|
23
|
|
|
const CLASSIFIER_FACE = '/classifier/haarcascade_frontalface_default.xml'; |
|
24
|
|
|
const CLASSIFIER_PROFILE = '/classifier/haarcascade_profileface.xml'; |
|
25
|
|
|
|
|
26
|
|
|
/** |
|
27
|
|
|
* safeZoneList |
|
28
|
|
|
* |
|
29
|
|
|
* @var array |
|
30
|
|
|
* @access protected |
|
31
|
|
|
*/ |
|
32
|
|
|
protected static $safeZoneList; |
|
33
|
|
|
|
|
34
|
|
|
/** |
|
35
|
|
|
* originalImage |
|
36
|
|
|
* |
|
37
|
|
|
* @var array |
|
38
|
|
|
* @access protected |
|
39
|
|
|
*/ |
|
40
|
|
|
protected static $originalImage; |
|
41
|
|
|
|
|
42
|
|
|
/** |
|
43
|
|
|
* baseDimension |
|
44
|
|
|
* |
|
45
|
|
|
* @var array |
|
46
|
|
|
* @access protected |
|
47
|
|
|
*/ |
|
48
|
|
|
protected static $baseDimension; |
|
49
|
|
|
|
|
50
|
|
|
/** |
|
51
|
|
|
* Returns the x,y values. |
|
52
|
|
|
* |
|
53
|
|
|
* @param Imagick $original |
|
54
|
|
|
* @param int $targetWidth |
|
55
|
|
|
* @param int $targetHeight |
|
56
|
|
|
* |
|
57
|
|
|
* @return array |
|
58
|
|
|
*/ |
|
59
|
|
|
public static function getOffsets(Imagick $original, $targetWidth, $targetHeight) |
|
60
|
|
|
{ |
|
61
|
|
|
static::$originalImage = $original; |
|
|
|
|
|
|
62
|
|
|
static::$baseDimension = [ |
|
63
|
|
|
'width' => $original->getImageWidth(), |
|
64
|
|
|
'height' => $original->getImageWidth(), |
|
65
|
|
|
]; |
|
66
|
|
|
parent::getOffsets($original, $targetWidth, $targetHeight); |
|
67
|
|
|
} |
|
68
|
|
|
|
|
69
|
|
|
/** |
|
70
|
|
|
* getBaseDimension |
|
71
|
|
|
* |
|
72
|
|
|
* @param string $key width|height |
|
73
|
|
|
* @access protected |
|
74
|
|
|
* @return int |
|
75
|
|
|
*/ |
|
76
|
|
|
protected static function getBaseDimension($key) |
|
77
|
|
|
{ |
|
78
|
|
|
if (isset(static::$baseDimension)) { |
|
79
|
|
|
return static::$baseDimension[$key]; |
|
80
|
|
|
} elseif ($key == 'width') { |
|
81
|
|
|
return static::$originalImage->getImageWidth(); |
|
|
|
|
|
|
82
|
|
|
} else { |
|
83
|
|
|
return static::$originalImage->getImageHeight(); |
|
|
|
|
|
|
84
|
|
|
} |
|
85
|
|
|
} |
|
86
|
|
|
|
|
87
|
|
|
/** |
|
88
|
|
|
* getFaceList get faces positions and sizes |
|
89
|
|
|
* |
|
90
|
|
|
* @access protected |
|
91
|
|
|
* @return array |
|
92
|
|
|
*/ |
|
93
|
|
|
protected static function getFaceList() |
|
94
|
|
|
{ |
|
95
|
|
|
if (!function_exists('face_detect')) { |
|
96
|
|
|
$msg = 'PHP Facedetect extension must be installed. |
|
97
|
|
|
See http://www.xarg.org/project/php-facedetect/ for more details'; |
|
98
|
|
|
throw new ImageException($msg); |
|
99
|
|
|
} |
|
100
|
|
|
|
|
101
|
|
|
$faceList = static::getFaceListFromClassifier(self::CLASSIFIER_FACE); |
|
102
|
|
|
if (!is_array($faceList)) { |
|
103
|
|
|
$faceList = []; |
|
104
|
|
|
} |
|
105
|
|
|
|
|
106
|
|
|
$profileList = static::getFaceListFromClassifier(self::CLASSIFIER_PROFILE); |
|
107
|
|
|
if (!is_array($profileList)) { |
|
108
|
|
|
$profileList = []; |
|
109
|
|
|
} |
|
110
|
|
|
|
|
111
|
|
|
$faceList = array_merge($faceList, $profileList); |
|
112
|
|
|
|
|
113
|
|
|
return $faceList; |
|
114
|
|
|
} |
|
115
|
|
|
|
|
116
|
|
|
/** |
|
117
|
|
|
* getFaceListFromClassifier |
|
118
|
|
|
* |
|
119
|
|
|
* @param string $classifier |
|
120
|
|
|
* @access protected |
|
121
|
|
|
* @return array |
|
122
|
|
|
*/ |
|
123
|
|
|
protected static function getFaceListFromClassifier($classifier) |
|
124
|
|
|
{ |
|
125
|
|
|
$file = tmpfile(); |
|
126
|
|
|
static::$originalImage->writeImageFile($file); |
|
|
|
|
|
|
127
|
|
|
$meta_data = stream_get_meta_data($file); |
|
128
|
|
|
$faceList = face_detect($meta_data['uri'], __DIR__ . $classifier); |
|
129
|
|
|
fclose($file); |
|
130
|
|
|
return $faceList; |
|
131
|
|
|
} |
|
132
|
|
|
|
|
133
|
|
|
/** |
|
134
|
|
|
* getSafeZoneList |
|
135
|
|
|
* |
|
136
|
|
|
* @access private |
|
137
|
|
|
* @return array |
|
138
|
|
|
*/ |
|
139
|
|
|
protected static function getSafeZoneList() |
|
140
|
|
|
{ |
|
141
|
|
|
if (!isset(static::$safeZoneList)) { |
|
142
|
|
|
static::$safeZoneList = array(); |
|
143
|
|
|
} |
|
144
|
|
|
// the local key is the current image width-height |
|
145
|
|
|
$key = static::$originalImage->getImageWidth() . '-' . static::$originalImage->getImageHeight(); |
|
|
|
|
|
|
146
|
|
|
|
|
147
|
|
|
if (!isset(static::$safeZoneList[$key])) { |
|
148
|
|
|
$faceList = static::getFaceList(); |
|
149
|
|
|
|
|
150
|
|
|
// getFaceList works on the main image, so we use a ratio between main/current image |
|
151
|
|
|
$xRatio = static::getBaseDimension('width') / static::$originalImage->getImageWidth(); |
|
|
|
|
|
|
152
|
|
|
$yRatio = static::getBaseDimension('height') / static::$originalImage->getImageHeight(); |
|
|
|
|
|
|
153
|
|
|
|
|
154
|
|
|
$safeZoneList = array(); |
|
155
|
|
|
foreach ($faceList as $face) { |
|
156
|
|
|
$hw = ceil($face['w'] / 2); |
|
157
|
|
|
$hh = ceil($face['h'] / 2); |
|
158
|
|
|
$safeZone = array( |
|
159
|
|
|
'left' => $face['x'] - $hw, |
|
160
|
|
|
'right' => $face['x'] + $face['w'] + $hw, |
|
161
|
|
|
'top' => $face['y'] - $hh, |
|
162
|
|
|
'bottom' => $face['y'] + $face['h'] + $hh |
|
163
|
|
|
); |
|
164
|
|
|
|
|
165
|
|
|
$safeZoneList[] = array( |
|
166
|
|
|
'left' => round($safeZone['left'] / $xRatio), |
|
167
|
|
|
'right' => round($safeZone['right'] / $xRatio), |
|
168
|
|
|
'top' => round($safeZone['top'] / $yRatio), |
|
169
|
|
|
'bottom' => round($safeZone['bottom'] / $yRatio), |
|
170
|
|
|
); |
|
171
|
|
|
} |
|
172
|
|
|
static::$safeZoneList[$key] = $safeZoneList; |
|
173
|
|
|
} |
|
174
|
|
|
|
|
175
|
|
|
return static::$safeZoneList[$key]; |
|
176
|
|
|
} |
|
177
|
|
|
} |
|
178
|
|
|
|
oscarotero /
imagecow
Loading history...
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..