給骨頭系統開發的圖像庫的 imagick 部分 ，支持 gif ， 完美支持裁切、生成縮略圖、添加水印 。
支持按方位生成縮略圖像， 如：
|
1
2
3
4
5
|
// 把左上角優先$image->resize_to(100, 100, 'north_west');// 右邊優先$image->resize_to(100, 100, 'east');... |
更多參數看源代碼
原圖
效果圖:
調用方式:
|
1
2
3
4
5
6
7
|
include 'imagick.class.php'; $image = new lib_image_imagick(); $image->open('a.gif'); $image->resize_to(100, 100, 'scale_fill'); $image->add_text('1024i.com', 10, 20); $image->add_watermark('1024i.gif', 10, 50); $image->save_to('x.gif'); |
imagick.class.php
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
|
<?php /* @版本日期: 版本日期: 2012年1月18日 @著作權所有: 1024 intelligence ( http://www.1024i.com ) 獲得使用本類庫的許可, 您必須保留著作權聲明信息. 報告漏洞，意見或建議, 請聯系 Lou Barnes(iua1024@gmail.com) */class lib_image_imagick { private $image = null; private $type = null; // 構造函數 public function __construct(){} // 析構函數 public function __destruct() { if($this->image!==null) $this->image->destroy(); } // 載入圖像 public function open($path) { $this->image = new Imagick( $path ); if($this->image) { $this->type = strtolower($this->image->getImageFormat()); } return $this->image; } public function crop($x=0, $y=0, $width=null, $height=null) { if($width==null) $width = $this->image->getImageWidth()-$x; if($height==null) $height = $this->image->getImageHeight()-$y; if($width<=0 || $height<=0) return; if($this->type=='gif') { $image = $this->image; $canvas = new Imagick(); $images = $image->coalesceImages(); foreach($images as $frame){ $img = new Imagick(); $img->readImageBlob($frame); $img->cropImage($width, $height, $x, $y); $canvas->addImage( $img ); $canvas->setImageDelay( $img->getImageDelay() ); $canvas->setImagePage($width, $height, 0, 0); } $image->destroy(); $this->image = $canvas; } else{ $this->image->cropImage($width, $height, $x, $y); } } /* * 更改圖像大小 $fit: 適應大小方式 'force': 把圖片強制變形成 $width X $height 大小 'scale': 按比例在安全框 $width X $height 內縮放圖片, 輸出縮放后圖像大小 不完全等于 $width X $height 'scale_fill': 按比例在安全框 $width X $height 內縮放圖片，安全框內沒有像素的地方填充色, 使用此參數時可設置背景填充色 $bg_color = array(255,255,255)(紅,綠,藍, 透明度) 透明度(0不透明-127完全透明)) 其它: 智能模能 縮放圖像并載取圖像的中間部分 $width X $height 像素大小 $fit = 'force','scale','scale_fill' 時： 輸出完整圖像 $fit = 圖像方位值 時, 輸出指定位置部分圖像 字母與圖像的對應關系如下: north_west north north_east west center east south_west south south_east */public function resize_to($width = 100, $height = 100, $fit = 'center', $fill_color = array(255,255,255,0) ) { switch($fit) { case 'force': if($this->type=='gif') { $image = $this->image; $canvas = new Imagick(); $images = $image->coalesceImages(); foreach($images as $frame){ $img = new Imagick(); $img->readImageBlob($frame); $img->thumbnailImage( $width, $height, false ); $canvas->addImage( $img ); $canvas->setImageDelay( $img->getImageDelay() ); } $image->destroy(); $this->image = $canvas; } else{ $this->image->thumbnailImage( $width, $height, false ); } break; case 'scale': if($this->type=='gif') { $image = $this->image; $images = $image->coalesceImages(); $canvas = new Imagick(); foreach($images as $frame){ $img = new Imagick(); $img->readImageBlob($frame); $img->thumbnailImage( $width, $height, true ); $canvas->addImage( $img ); $canvas->setImageDelay( $img->getImageDelay() ); } $image->destroy(); $this->image = $canvas; } else{ $this->image->thumbnailImage( $width, $height, true ); } break; case 'scale_fill': $size = $this->image->getImagePage(); $src_width = $size['width']; $src_height = $size['height']; $x = 0; $y = 0; $dst_width = $width; $dst_height = $height; if($src_width*$height > $src_height*$width) { $dst_height = intval($width*$src_height/$src_width); $y = intval( ($height-$dst_height)/2 ); } else{ $dst_width = intval($height*$src_width/$src_height); $x = intval( ($width-$dst_width)/2 ); } $image = $this->image; $canvas = new Imagick(); $color = 'rgba('.$fill_color[0].','.$fill_color[1].','.$fill_color[2].','.$fill_color[3].')'; if($this->type=='gif') { $images = $image->coalesceImages(); foreach($images as $frame) { $frame->thumbnailImage( $width, $height, true ); $draw = new ImagickDraw(); $draw->composite($frame->getImageCompose(), $x, $y, $dst_width, $dst_height, $frame); $img = new Imagick(); $img->newImage($width, $height, $color, 'gif'); $img->drawImage($draw); $canvas->addImage( $img ); $canvas->setImageDelay( $img->getImageDelay() ); $canvas->setImagePage($width, $height, 0, 0); } } else{ $image->thumbnailImage( $width, $height, true ); $draw = new ImagickDraw(); $draw->composite($image->getImageCompose(), $x, $y, $dst_width, $dst_height, $image); $canvas->newImage($width, $height, $color, $this->get_type() ); $canvas->drawImage($draw); $canvas->setImagePage($width, $height, 0, 0); } $image->destroy(); $this->image = $canvas; break; default: $size = $this->image->getImagePage(); $src_width = $size['width']; $src_height = $size['height']; $crop_x = 0; $crop_y = 0; $crop_w = $src_width; $crop_h = $src_height; if($src_width*$height > $src_height*$width) { $crop_w = intval($src_height*$width/$height); } else{ $crop_h = intval($src_width*$height/$width); } switch($fit) { case 'north_west': $crop_x = 0; $crop_y = 0; break; case 'north': $crop_x = intval( ($src_width-$crop_w)/2 ); $crop_y = 0; break; case 'north_east': $crop_x = $src_width-$crop_w; $crop_y = 0; break; case 'west': $crop_x = 0; $crop_y = intval( ($src_height-$crop_h)/2 ); break; case 'center': $crop_x = intval( ($src_width-$crop_w)/2 ); $crop_y = intval( ($src_height-$crop_h)/2 ); break; case 'east': $crop_x = $src_width-$crop_w; $crop_y = intval( ($src_height-$crop_h)/2 ); break; case 'south_west': $crop_x = 0; $crop_y = $src_height-$crop_h; break; case 'south': $crop_x = intval( ($src_width-$crop_w)/2 ); $crop_y = $src_height-$crop_h; break; case 'south_east': $crop_x = $src_width-$crop_w; $crop_y = $src_height-$crop_h; break; default: $crop_x = intval( ($src_width-$crop_w)/2 ); $crop_y = intval( ($src_height-$crop_h)/2 ); } $image = $this->image; $canvas = new Imagick(); if($this->type=='gif') { $images = $image->coalesceImages(); foreach($images as $frame){ $img = new Imagick(); $img->readImageBlob($frame); $img->cropImage($crop_w, $crop_h, $crop_x, $crop_y); $img->thumbnailImage( $width, $height, true ); $canvas->addImage( $img ); $canvas->setImageDelay( $img->getImageDelay() ); $canvas->setImagePage($width, $height, 0, 0); } } else{ $image->cropImage($crop_w, $crop_h, $crop_x, $crop_y); $image->thumbnailImage( $width, $height, true ); $canvas->addImage( $image ); $canvas->setImagePage($width, $height, 0, 0); } $image->destroy(); $this->image = $canvas; } } // 添加水印圖片 public function add_watermark($path, $x = 0, $y = 0) { $watermark = new Imagick($path); $draw = new ImagickDraw(); $draw->composite($watermark->getImageCompose(), $x, $y, $watermark->getImageWidth(), $watermark->getimageheight(), $watermark); if($this->type=='gif') { $image = $this->image; $canvas = new Imagick(); $images = $image->coalesceImages(); foreach($image as $frame) { $img = new Imagick(); $img->readImageBlob($frame); $img->drawImage($draw); $canvas->addImage( $img ); $canvas->setImageDelay( $img->getImageDelay() ); } $image->destroy(); $this->image = $canvas; } else{ $this->image->drawImage($draw); } } // 添加水印文字 public function add_text($text, $x = 0 , $y = 0, $angle=0, $style=array()) { $draw = new ImagickDraw(); if(isset($style['font'])) $draw->setFont($style['font']); if(isset($style['font_size'])) $draw->setFontSize($style['font_size']); if(isset($style['fill_color'])) $draw->setFillColor($style['fill_color']); if(isset($style['under_color'])) $draw->setTextUnderColor($style['under_color']); if($this->type=='gif') { foreach($this->image as $frame) { $frame->annotateImage($draw, $x, $y, $angle, $text); } } else{ $this->image->annotateImage($draw, $x, $y, $angle, $text); } } // 保存到指定路徑 public function save_to( $path ) { if($this->type=='gif') { $this->image->writeImages($path, true); } else{ $this->image->writeImage($path); } } // 輸出圖像 public function output($header = true) { if($header) header('Content-type: '.$this->type); echo $this->image->getImagesBlob(); } public function get_width() { $size = $this->image->getImagePage(); return $size['width']; } public function get_height() { $size = $this->image->getImagePage(); return $size['height']; } // 設置圖像類型， 默認與源類型一致 public function set_type( $type='png' ) { $this->type = $type; $this->image->setImageFormat( $type ); } // 獲取源圖像類型 public function get_type() { return $this->type; } // 當前對象是否為圖片 public function is_image() { if( $this->image ) return true; elsereturn false; } public function thumbnail($width = 100, $height = 100, $fit = true){ $this->image->thumbnailImage( $width, $height, $fit );} // 生成縮略圖 $fit為真時將保持比例并在安全框 $width X $height 內生成縮略圖片 /* 添加一個邊框 $width: 左右邊框寬度 $height: 上下邊框寬度 $color: 顏色: RGB 顏色 'rgb(255,0,0)' 或 16進制顏色 '#FF0000' 或顏色單詞 'white'/'red'... */public function border($width, $height, $color='rgb(220, 220, 220)') { $color=new ImagickPixel(); $color->setColor($color); $this->image->borderImage($color, $width, $height); } public function blur($radius, $sigma){$this->image->blurImage($radius, $sigma);} // 模糊 public function gaussian_blur($radius, $sigma){$this->image->gaussianBlurImage($radius, $sigma);} // 高斯模糊 public function motion_blur($radius, $sigma, $angle){$this->image->motionBlurImage($radius, $sigma, $angle);} // 運動模糊 public function radial_blur($radius){$this->image->radialBlurImage($radius);} // 徑向模糊 public function add_noise($type=null){$this->image->addNoiseImage($type==null?imagick::NOISE_IMPULSE:$type);} // 添加噪點 public function level($black_point, $gamma, $white_point){$this->image->levelImage($black_point, $gamma, $white_point);} // 調整色階 public function modulate($brightness, $saturation, $hue){$this->image->modulateImage($brightness, $saturation, $hue);} // 調整亮度、飽和度、色調 public function charcoal($radius, $sigma){$this->image->charcoalImage($radius, $sigma);} // 素描 public function oil_paint($radius){$this->image->oilPaintImage($radius);} // 油畫效果 public function flop(){$this->image->flopImage();} // 水平翻轉 public function flip(){$this->image->flipImage();} // 垂直翻轉 } |
