File: image.html

package info (click to toggle)
imagemagick 8%3A6.6.0.4-3%2Bsqueeze4
  • links: PTS, VCS
  • area: main
  • in suites: squeeze
  • size: 60,836 kB
  • ctags: 41,044
  • sloc: ansic: 273,304; cpp: 18,276; sh: 10,816; xml: 7,125; perl: 4,893; makefile: 2,346; tcl: 459; pascal: 125
file content (1066 lines) | stat: -rw-r--r-- 37,402 bytes parent folder | download | duplicates (2)
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
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
  <meta http-equiv="Content-Type" value="application/xhtml+xml" />
  <meta name="verify-v1" content="g222frIIxcQTrvDR3NBRUSKP3AnMNoqxOkIniCEkV7U=" />
  <link rel="meta" type="application/rdf+xml" title="ICI" href="http://imagemagick.org/ici.rdf" />
  <style type="text/css" media="screen,projection"><!--
    @import url("../../www/magick.css");
  --></style>
  <link rel="shortcut icon" href="../../images/wand.ico"  type="images/vnd.microsoft.icon"/>
  <title>ImageMagick: MagickCore, C API for ImageMagick: Image Methods</title>
  <meta http-equiv="Content-Language" content="en-US"/>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <meta http-equiv="Reply-to" content="magick-users@imagemagick.org"/>
  <meta name="Generator" content="PHP"/>
  <meta name="Keywords" content="magickcore, c, api, for, imagemagick:, image, methods, ImageMagick, ImageMagic, MagickCore, MagickWand, PerlMagick, Magick++, RMagick, PythonMagick, JMagick, TclMagick, Image, Magick, Magic, Wand, ImageMagickObject, Swiss, Army, Knife, Image, Processing"/>
  <meta name="Description" content="ImageMagick® is a software suite to create, edit, and compose bitmap images. It can read, convert and write images in a variety of formats (about 100) including GIF, JPEG, JPEG-2000, PNG, PDF, PhotoCD, TIFF, and DPX. Use ImageMagick to translate, flip, mirror, rotate, scale, shear and transform images, adjust image colors, apply various special effects, or draw text, lines, polygons, ellipses and Bézier curves.  ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you can freely use, copy, modify, and distribute. Its license is compatible with the GPL. It runs on all major operating systems.  The functionality of ImageMagick is typically utilized from the command line or you can use the features from programs written in your favorite programming language. Choose from these interfaces: MagickCore (C), MagickWand (C), ChMagick (Ch), Magick++ (C++), JMagick (Java), L-Magick (Lisp), PascalMagick (Pascal), PerlMagick (Perl), MagickWand for PHP (PHP), PythonMagick (Python), RMagick (Ruby), or TclMagick (Tcl/TK). With a language interface, use ImageMagick to modify or create images automagically and dynamically."/>
  <meta name="Rating" content="GENERAL"/>
  <meta name="Robots" content="INDEX, FOLLOW"/>
  <meta name="Generator" content="ImageMagick Studio LLC"/>
  <meta name="Author" content="ImageMagick Studio LLC"/>
  <meta name="Revisit-after" content="2 DAYS"/>
  <meta name="Resource-type" content="document"/>
  <meta name="Copyright" content="Copyright (c) 1999-2010 ImageMagick Studio LLC"/>
  <meta name="Distribution" content="Global"/>
</head>

<body id="www-imagemagick-org">
<div class="titlebar">
<a href="../../index.html">
  <img src="../../images/script.png" alt="[ImageMagick]"
  style="width: 350px; height: 60px; margin: 28px auto; float: left;" /></a>
<a href="http://www.networkredux.com">
  <img src="../../images/networkredux.png" alt="[sponsor]"
  style="margin: 45px auto; border: 0px; float: left;" /></a>
<a href="http://www.imagemagick.org/discourse-server/">
  <img src="../../images/logo.jpg" alt=""
  style="width: 114px; height: 118px; border: 0px; float: right;" /></a>
<a href="../../index.html">
  <img src="../../images/sprite.jpg" alt=""
  style="width: 114px; height: 118px; border: 0px; float: right;" /></a>
</div>

<div class="eastbar">

<div class="menu">
  <a href="../../index.html">About ImageMagick</a>
</div>
<div class="sep"></div>
<div class="menu">
  <a href="../../www/command-line-tools.html">Command-line Tools</a>
</div>
<div class="sub">
    <a href="../../www/command-line-processing.html">Processing</a>
</div>
<div class="sub">
    <a href="../../www/command-line-options.html">Options</a>
</div>
<div class="sub">
    <a href="http://www.imagemagick.org/Usage/">Usage</a>
</div>
<div class="menu">
  <a href="../../www/api.html">Program Interfaces</a>
</div>
<div class="sub">
    <a href="../../www/magick-wand.html">MagickWand</a>
</div>
<div class="sub">
    <a href="../../www/magick-core.html">MagickCore</a>
</div>
<div class="sub">
    <a href="../../www/perl-magick.html">PerlMagick</a>
</div>
<div class="sub">
    <a href="../../Magick++/">Magick++</a>
</div>
<div class="menu">
  <a href="../../www/architecture.html">Architecture</a>
</div>
<div class="sep"></div>
<div  class="menu">
   <a href="../../www/install-source.html">Install from Source</a>
</div>
<div class="sub">
    <a href="../../www/install-source.html#unix">Unix</a>
</div>
<div class="sub">
    <a href="../../www/install-source.html#windows">Windows</a>
 </div>
<div class="menu">
  <a href="../../www/binary-releases.html">Binary Releases</a>
</div>
<div class="sub">
    <a href="../../www/binary-releases.html#unix">Unix</a>
</div>
<div class="sub">
    <a href="../../www/binary-releases.html#macosx">Mac OS X</a>
</div>
<div class="sub">
    <a href="../../www/binary-releases.html#windows">Windows</a>
</div>
<div class="menu">
  <a href="../../www/resources.html">Resources</a>
</div>
<div class="sep"></div>
<div class="menu">
  <a href="../../www/download.html">Download</a>
</div>
<div class="sep"></div>
<div class="menu">
  <a href="../http://www.imagemagick.org/script/search.php">Search</a>
</div>
<div class="sep"></div>
<div class="menu">
  <a href="../../www/sitemap.html">Site Map</a>
</div>
<div  class="sub">
    <a href="../../www/links.html">Links</a>
</div>
<div class="sep"></div>
<div  class="menu">
  <a href="../../www/sponsors.html">Sponsors:</a>

<div class="sponsbox">
<div  class="sponsor">
   <a href="http://www.abi-stoff.de/abizeitung/" title="Abibuch">Abizeitung</a><!-- 20101101000200 -->
</div>
<div  class="sponsor">
  <a href="http://www.deko.net">Deko.net</a><!-- 201101010600 Peterssen-->
</div>
<div  class="sponsor">
  <a href="http://www.tomsgutscheine.de">Tom's Gutscheine</a><!-- 201005010360 invendio.de-->
</div>
<div  class="sponsor">
  <a href="http://www.online-kredit-index.de">Kredit</a><!-- 201007010120 Buchhorn -->
</div>
<div  class="sponsor">
  <a href="http://www.blumenversender.com">Blumenversand</a><!-- 201005010120 -->
</div>
<div  class="sponsor">
  <a href="http://www.print24.de/">Druckerei</a><!-- 201009010720 -->
</div>
<div  class="sponsor">
   <a href="http://www.goyax.de">Börse</a><!-- 201004010240 Gewiese digital-finance.de -->
</div>
<div  class="sponsor">
   <a href="http://www.allesdruck.de">Druckerei Online</a><!-- 201012011200 allesdruck.de-->
</div>
</div>
</div>


</div>

<div class="main">

<p class="navigation-index">[<a href="#AcquireImage">AcquireImage</a> &bull; <a href="#AcquireImageColormap">AcquireImageColormap</a> &bull; <a href="#AcquireImageInfo">AcquireImageInfo</a> &bull; <a href="#AcquireNextImage">AcquireNextImage</a> &bull; <a href="#AppendImages">AppendImages</a> &bull; <a href="#CatchImageException">CatchImageException</a> &bull; <a href="#ClipImagePath">ClipImagePath</a> &bull; <a href="#CloneImage">CloneImage</a> &bull; <a href="#CloneImageInfo">CloneImageInfo</a> &bull; <a href="#CombineImages">CombineImages</a> &bull; <a href="#DestroyImage">DestroyImage</a> &bull; <a href="#DestroyImageInfo">DestroyImageInfo</a> &bull; <a href="#GetImageAlphaChannel">GetImageAlphaChannel</a> &bull; <a href="#GetImageClipMask">GetImageClipMask</a> &bull; <a href="#GetImageException">GetImageException</a> &bull; <a href="#GetImageInfo">GetImageInfo</a> &bull; <a href="#GetImageInfoFile">GetImageInfoFile</a> &bull; <a href="#GetImageMask">GetImageMask</a> &bull; <a href="#GetImageVirtualPixelMethod">GetImageVirtualPixelMethod</a> &bull; <a href="#InterpretImageFilename">InterpretImageFilename</a> &bull; <a href="#IsHighDynamicRangeImage">IsHighDynamicRangeImage</a> &bull; <a href="#IsImageObject">IsImageObject</a> &bull; <a href="#IsTaintImage">IsTaintImage</a> &bull; <a href="#ModifyImage">ModifyImage</a> &bull; <a href="#NewMagickImage">NewMagickImage</a> &bull; <a href="#ReferenceImage">ReferenceImage</a> &bull; <a href="#ResetImagePage">ResetImagePage</a> &bull; <a href="#SeparateImageChannel">SeparateImageChannel</a> &bull; <a href="#SeparateImages">SeparateImages</a> &bull; <a href="#SetImageAlphaChannel">SetImageAlphaChannel</a> &bull; <a href="#SetImageBackgroundColor">SetImageBackgroundColor</a> &bull; <a href="#SetImageStorageClass">SetImageStorageClass</a> &bull; <a href="#SetImageClipMask">SetImageClipMask</a> &bull; <a href="#SetImageExtent">SetImageExtent</a> &bull; <a href="#SetImageInfoBlob">SetImageInfoBlob</a> &bull; <a href="#SetImageInfoFile">SetImageInfoFile</a> &bull; <a href="#SetImageMask">SetImageMask</a> &bull; <a href="#SetImageOpacity">SetImageOpacity</a> &bull; <a href="#SetImageType">SetImageType</a> &bull; <a href="#SetImageVirtualPixelMethod">SetImageVirtualPixelMethod</a> &bull; <a href="#StripImage">StripImage</a> &bull; <a href="#SyncImageSettings">SyncImageSettings</a>]</p>

<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="AcquireImage">AcquireImage</a></h2>
<div class="doc-section">

<p>AcquireImage() returns a pointer to an image structure initialized to default values.</p></ol>

<p>The format of the AcquireImage method is:</p>

<pre class="code">
  Image *AcquireImage(const ImageInfo *image_info)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>Many of the image default values are set from this structure.  For example, filename, compression, depth, background color, and others.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="AcquireImageColormap">AcquireImageColormap</a></h2>
<div class="doc-section">

<p>AcquireImageColormap() allocates an image colormap and initializes it to a linear gray colorspace.  If the image already has a colormap, it is replaced.  AcquireImageColormap() returns MagickTrue if successful, otherwise MagickFalse if there is not enough memory.</p></ol>

<p>The format of the AcquireImageColormap method is:</p>

<pre class="code">
  MagickBooleanType AcquireImageColormap(Image *image,
    const unsigned long colors)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>colors</h5>
<ol><p>the number of colors in the image colormap.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="AcquireImageInfo">AcquireImageInfo</a></h2>
<div class="doc-section">

<p>AcquireImageInfo() allocates the ImageInfo structure.</p></ol>

<p>The format of the AcquireImageInfo method is:</p>

<pre class="code">
  ImageInfo *AcquireImageInfo(void)
</pre>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="AcquireNextImage">AcquireNextImage</a></h2>
<div class="doc-section">

<p>AcquireNextImage() initializes the next image in a sequence to default values.  The next member of image points to the newly allocated image.  If there is a memory shortage, next is assigned NULL.</p></ol>

<p>The format of the AcquireNextImage method is:</p>

<pre class="code">
  void AcquireNextImage(const ImageInfo *image_info,Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>Many of the image default values are set from this structure.  For example, filename, compression, depth, background color, and others.</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="AppendImages">AppendImages</a></h2>
<div class="doc-section">

<p>AppendImages() takes all images from the current image pointer to the end of the image list and appends them to each other top-to-bottom if the stack parameter is true, otherwise left-to-right.</p></ol>

<p>The current gravity setting now effects how the image is justified in the final image.</p></ol>

<p>The format of the AppendImages method is:</p>

<pre class="code">
  Image *AppendImages(const Image *image,const MagickBooleanType stack,
    ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image sequence.</p></ol>

<h5>stack</h5>
<ol><p>A value other than 0 stacks the images top-to-bottom.</p></ol>

<h5>exception</h5>
<ol><p>return any errors or warnings in this structure.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="CatchImageException">CatchImageException</a></h2>
<div class="doc-section">

<p>CatchImageException() returns if no exceptions are found in the image sequence, otherwise it determines the most severe exception and reports it as a warning or error depending on the severity.</p></ol>

<p>The format of the CatchImageException method is:</p>

<pre class="code">
  ExceptionType CatchImageException(Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>An image sequence.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="ClipImagePath">ClipImagePath</a></h2>
<div class="doc-section">

<p>ClipImagePath() sets the image clip mask based any clipping path information if it exists.</p></ol>

<p>The format of the ClipImagePath method is:</p>

<pre class="code">
  MagickBooleanType ClipImagePath(Image *image,const char *pathname,
    const MagickBooleanType inside)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>pathname</h5>
<ol><p>name of clipping path resource. If name is preceded by #, use clipping path numbered by name.</p></ol>

<h5>inside</h5>
<ol><p>if non-zero, later operations take effect inside clipping path. Otherwise later operations take effect outside clipping path.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="CloneImage">CloneImage</a></h2>
<div class="doc-section">

<p>CloneImage() copies an image and returns the copy as a new image object. If the specified columns and rows is 0, an exact copy of the image is returned, otherwise the pixel data is undefined and must be initialized with the QueueAuthenticPixels() and SyncAuthenticPixels() methods.  On failure, a NULL image is returned and exception describes the reason for the failure.</p></ol>

<p>The format of the CloneImage method is:</p>

<pre class="code">
  Image *CloneImage(const Image *image,const unsigned long columns,
    const unsigned long rows,const MagickBooleanType orphan,
    ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>columns</h5>
<ol><p>the number of columns in the cloned image.</p></ol>

<h5>rows</h5>
<ol><p>the number of rows in the cloned image.</p></ol>

<h5>detach</h5>
<ol><p>With a value other than 0, the cloned image is detached from its parent I/O stream.</p></ol>

<h5>exception</h5>
<ol><p>return any errors or warnings in this structure.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="CloneImageInfo">CloneImageInfo</a></h2>
<div class="doc-section">

<p>CloneImageInfo() makes a copy of the given image info structure.  If NULL is specified, a new image info structure is created initialized to default values.</p></ol>

<p>The format of the CloneImageInfo method is:</p>

<pre class="code">
  ImageInfo *CloneImageInfo(const ImageInfo *image_info)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="CombineImages">CombineImages</a></h2>
<div class="doc-section">

<p>CombineImages() combines one or more images into a single image.  The grayscale value of the pixels of each image in the sequence is assigned in order to the specified channels of the combined image.   The typical ordering would be image 1 => Red, 2 => Green, 3 => Blue, etc.</p></ol>

<p>The format of the CombineImages method is:</p>

<pre class="code">
  Image *CombineImages(const Image *image,const ChannelType channel,
    ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>exception</h5>
<ol><p>return any errors or warnings in this structure.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="DestroyImage">DestroyImage</a></h2>
<div class="doc-section">

<p>DestroyImage() dereferences an image, deallocating memory associated with the image if the reference count becomes zero.</p></ol>

<p>The format of the DestroyImage method is:</p>

<pre class="code">
  Image *DestroyImage(Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="DestroyImageInfo">DestroyImageInfo</a></h2>
<div class="doc-section">

<p>DestroyImageInfo() deallocates memory associated with an ImageInfo structure.</p></ol>

<p>The format of the DestroyImageInfo method is:</p>

<pre class="code">
  ImageInfo *DestroyImageInfo(ImageInfo *image_info)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageAlphaChannel">GetImageAlphaChannel</a></h2>
<div class="doc-section">

<p>GetImageAlphaChannel() returns MagickFalse if the image alpha channel is not activated.  That is, the image is RGB rather than RGBA or CMYK rather than CMYKA.</p></ol>

<p>The format of the GetImageAlphaChannel method is:</p>

<pre class="code">
  MagickBooleanType GetImageAlphaChannel(const Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageClipMask">GetImageClipMask</a></h2>
<div class="doc-section">

<p>GetImageClipMask() returns the clip path associated with the image.</p></ol>

<p>The format of the GetImageClipMask method is:</p>

<pre class="code">
  Image *GetImageClipMask(const Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageException">GetImageException</a></h2>
<div class="doc-section">

<p>GetImageException() traverses an image sequence and returns any error more severe than noted by the exception parameter.</p></ol>

<p>The format of the GetImageException method is:</p>

<pre class="code">
  void GetImageException(Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>Specifies a pointer to a list of one or more images.</p></ol>

<h5>exception</h5>
<ol><p>return the highest severity exception.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageInfo">GetImageInfo</a></h2>
<div class="doc-section">

<p>GetImageInfo() initializes image_info to default values.</p></ol>

<p>The format of the GetImageInfo method is:</p>

<pre class="code">
  void GetImageInfo(ImageInfo *image_info)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageInfoFile">GetImageInfoFile</a></h2>
<div class="doc-section">

<p>GetImageInfoFile() returns the image info file member.</p></ol>

<p>The format of the GetImageInfoFile method is:</p>

<pre class="code">
  FILE *GetImageInfoFile(const ImageInfo *image_info)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageMask">GetImageMask</a></h2>
<div class="doc-section">

<p>GetImageMask() returns the mask associated with the image.</p></ol>

<p>The format of the GetImageMask method is:</p>

<pre class="code">
  Image *GetImageMask(const Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="GetImageVirtualPixelMethod">GetImageVirtualPixelMethod</a></h2>
<div class="doc-section">

<p>GetImageVirtualPixelMethod() gets the "virtual pixels" method for the image.  A virtual pixel is any pixel access that is outside the boundaries of the image cache.</p></ol>

<p>The format of the GetImageVirtualPixelMethod() method is:</p>

<pre class="code">
  VirtualPixelMethod GetImageVirtualPixelMethod(const Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="InterpretImageFilename">InterpretImageFilename</a></h2>
<div class="doc-section">

<p>InterpretImageFilename() interprets embedded characters in an image filename. The filename length is returned.</p></ol>

<p>The format of the InterpretImageFilename method is:</p>

<pre class="code">
  size_t InterpretImageFilename(const ImageInfo *image_info,
    Image *image,const char *format,int value,char *filename)
</pre>

<p>A description of each parameter follows.</p></ol>

<h5>image_info</h5>
<ol><p>the image info..</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>format</h5>
<ol><p>A filename describing the format to use to write the numeric argument. Only the first numeric format identifier is replaced.</p></ol>

<h5>value</h5>
<ol><p>Numeric value to substitute into format filename.</p></ol>

<h5>filename</h5>
<ol><p>return the formatted filename in this character buffer.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="IsHighDynamicRangeImage">IsHighDynamicRangeImage</a></h2>
<div class="doc-section">

<p>IsHighDynamicRangeImage() returns MagickTrue if any pixel component is non-integer or exceeds the bounds of the quantum depth (e.g. for Q16 0..65535.</p></ol>

<p>The format of the IsHighDynamicRangeImage method is:</p>

<pre class="code">
  MagickBooleanType IsHighDynamicRangeImage(const Image *image,
    ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>exception</h5>
<ol><p>return any errors or warnings in this structure.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="IsImageObject">IsImageObject</a></h2>
<div class="doc-section">

<p>IsImageObject() returns MagickTrue if the image sequence contains a valid set of image objects.</p></ol>

<p>The format of the IsImageObject method is:</p>

<pre class="code">
  MagickBooleanType IsImageObject(const Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="IsTaintImage">IsTaintImage</a></h2>
<div class="doc-section">

<p>IsTaintImage() returns MagickTrue any pixel in the image has been altered since it was first constituted.</p></ol>

<p>The format of the IsTaintImage method is:</p>

<pre class="code">
  MagickBooleanType IsTaintImage(const Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="ModifyImage">ModifyImage</a></h2>
<div class="doc-section">

<p>ModifyImage() ensures that there is only a single reference to the image to be modified, updating the provided image pointer to point to a clone of the original image if necessary.</p></ol>

<p>The format of the ModifyImage method is:</p>

<pre class="code">
  MagickBooleanType ModifyImage(Image *image,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>exception</h5>
<ol><p>return any errors or warnings in this structure.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="NewMagickImage">NewMagickImage</a></h2>
<div class="doc-section">

<p>NewMagickImage() creates a blank image canvas of the specified size and background color.</p></ol>

<p>The format of the NewMagickImage method is:</p>

<pre class="code">
  Image *NewMagickImage(const ImageInfo *image_info,
    const unsigned long width,const unsigned long height,
    const MagickPixelPacket *background)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>width</h5>
<ol><p>the image width.</p></ol>

<h5>height</h5>
<ol><p>the image height.</p></ol>

<h5>background</h5>
<ol><p>the image color.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="ReferenceImage">ReferenceImage</a></h2>
<div class="doc-section">

<p>ReferenceImage() increments the reference count associated with an image returning a pointer to the image.</p></ol>

<p>The format of the ReferenceImage method is:</p>

<pre class="code">
  Image *ReferenceImage(Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="ResetImagePage">ResetImagePage</a></h2>
<div class="doc-section">

<p>ResetImagePage() resets the image page canvas and position.</p></ol>

<p>The format of the ResetImagePage method is:</p>

<pre class="code">
  MagickBooleanType ResetImagePage(Image *image,const char *page)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>page</h5>
<ol><p>the relative page specification.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SeparateImageChannel">SeparateImageChannel</a></h2>
<div class="doc-section">

<p>SeparateImageChannel() separates a channel from the image and returns it as a grayscale image.  A channel is a particular color component of each pixel in the image.</p></ol>

<p>The format of the SeparateImageChannel method is:</p>

<pre class="code">
  MagickBooleanType SeparateImageChannel(Image *image,
    const ChannelType channel)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>channel</h5>
<ol><p>Identify which channel to extract: RedChannel, GreenChannel, BlueChannel, OpacityChannel, CyanChannel, MagentaChannel, YellowChannel, or BlackChannel.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SeparateImages">SeparateImages</a></h2>
<div class="doc-section">

<p>SeparateImages() returns a separate grayscale image for each channel specified.</p></ol>

<p>The format of the SeparateImages method is:</p>

<pre class="code">
  MagickBooleanType SeparateImages(const Image *image,
    const ChannelType channel,ExceptionInfo *exception)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>channel</h5>
<ol><p>Identify which channels to extract: RedChannel, GreenChannel, BlueChannel, OpacityChannel, CyanChannel, MagentaChannel, YellowChannel, or BlackChannel.</p></ol>

<h5>exception</h5>
<ol><p>return any errors or warnings in this structure.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageAlphaChannel">SetImageAlphaChannel</a></h2>
<div class="doc-section">

<p>SetImageAlphaChannel() activates, deactivates, resets, or sets the alpha channel.</p></ol>

<p>The format of the SetImageAlphaChannel method is:</p>

<pre class="code">
  MagickBooleanType SetImageAlphaChannel(Image *image,
    const AlphaChannelType alpha_type)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>alpha_type</h5>
<ol><p>The alpha channel type: ActivateAlphaChannel, CopyAlphaChannel, DeactivateAlphaChannel, ExtractAlphaChannel, OpaqueAlphaChannel, ResetAlphaChannel, SetAlphaChannel, ShapeAlphaChannel, and TransparentAlphaChannel.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageBackgroundColor">SetImageBackgroundColor</a></h2>
<div class="doc-section">

<p>SetImageBackgroundColor() initializes the image pixels to the image background color.  The background color is defined by the background_color member of the image structure.</p></ol>

<p>The format of the SetImage method is:</p>

<pre class="code">
  MagickBooleanType SetImageBackgroundColor(Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageStorageClass">SetImageStorageClass</a></h2>
<div class="doc-section">

<p>SetImageStorageClass() sets the image class: DirectClass for true color images or PseudoClass for colormapped images.</p></ol>

<p>The format of the SetImageStorageClass method is:</p>

<pre class="code">
  MagickBooleanType SetImageStorageClass(Image *image,
    const ClassType storage_class)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>storage_class</h5>
<ol><p>The image class.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageClipMask">SetImageClipMask</a></h2>
<div class="doc-section">

<p>SetImageClipMask() associates a clip path with the image.  The clip path must be the same dimensions as the image.  Set any pixel component of the clip path to TransparentOpacity to prevent that corresponding image pixel component from being updated when SyncAuthenticPixels() is applied.</p></ol>

<p>The format of the SetImageClipMask method is:</p>

<pre class="code">
  MagickBooleanType SetImageClipMask(Image *image,const Image *clip_mask)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>clip_mask</h5>
<ol><p>the image clip path.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageExtent">SetImageExtent</a></h2>
<div class="doc-section">

<p>SetImageExtent() sets the image size (i.e. columns & rows).</p></ol>

<p>The format of the SetImageExtent method is:</p>

<pre class="code">
  MagickBooleanType SetImageExtent(Image *image,
    const unsigned long columns,const unsigned long rows)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>columns</h5>
<ol><p>The image width in pixels.</p></ol>

<h5>rows</h5>
<ol><p>The image height in pixels.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageInfoBlob">SetImageInfoBlob</a></h2>
<div class="doc-section">

<p>SetImageInfoBlob() sets the image info blob member.</p></ol>

<p>The format of the SetImageInfoBlob method is:</p>

<pre class="code">
  void SetImageInfoBlob(ImageInfo *image_info,const void *blob,
    const size_t length)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

<h5>blob</h5>
<ol><p>the blob.</p></ol>

<h5>length</h5>
<ol><p>the blob length.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageInfoFile">SetImageInfoFile</a></h2>
<div class="doc-section">

<p>SetImageInfoFile() sets the image info file member.</p></ol>

<p>The format of the SetImageInfoFile method is:</p>

<pre class="code">
  void SetImageInfoFile(ImageInfo *image_info,FILE *file)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

<h5>file</h5>
<ol><p>the file.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageMask">SetImageMask</a></h2>
<div class="doc-section">

<p>SetImageMask() associates a mask with the image.  The mask must be the same dimensions as the image.</p></ol>

<p>The format of the SetImageMask method is:</p>

<pre class="code">
  MagickBooleanType SetImageMask(Image *image,const Image *mask)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>mask</h5>
<ol><p>the image mask.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageOpacity">SetImageOpacity</a></h2>
<div class="doc-section">

<p>SetImageOpacity() sets the opacity levels of the image.</p></ol>

<p>The format of the SetImageOpacity method is:</p>

<pre class="code">
  MagickBooleanType SetImageOpacity(Image *image,const Quantum opacity)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>opacity</h5>
<ol><p>the level of transparency: 0 is fully opaque and QuantumRange is fully transparent.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageType">SetImageType</a></h2>
<div class="doc-section">

<p>SetImageType() sets the type of image.  Choose from these types:</p></ol>

<p>Bilevel        Grayscale       GrayscaleMatte Palette        PaletteMatte    TrueColor TrueColorMatte ColorSeparation ColorSeparationMatte OptimizeType</p></ol>

<p>The format of the SetImageType method is:</p>

<pre class="code">
  MagickBooleanType SetImageType(Image *image,const ImageType type)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>type</h5>
<ol><p>Image type.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SetImageVirtualPixelMethod">SetImageVirtualPixelMethod</a></h2>
<div class="doc-section">

<p>SetImageVirtualPixelMethod() sets the "virtual pixels" method for the image and returns the previous setting.  A virtual pixel is any pixel access that is outside the boundaries of the image cache.</p></ol>

<p>The format of the SetImageVirtualPixelMethod() method is:</p>

<pre class="code">
  VirtualPixelMethod SetImageVirtualPixelMethod(const Image *image,
    const VirtualPixelMethod virtual_pixel_method)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

<h5>virtual_pixel_method</h5>
<ol><p>choose the type of virtual pixel.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="StripImage">StripImage</a></h2>
<div class="doc-section">

<p>StripImage() strips an image of all profiles and comments.</p></ol>

<p>The format of the StripImage method is:</p>

<pre class="code">
  MagickBooleanType StripImage(Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>
<h2><a href="http://www.imagemagick.org/api/MagickCore/image
_8c.html" target="source" name="SyncImageSettings">SyncImageSettings</a></h2>
<div class="doc-section">

<p>SyncImageSettings() sync the image info options to the image.</p></ol>

<p>The format of the SyncImageSettings method is:</p>

<pre class="code">
  MagickBooleanType SyncImageSettings(const ImageInfo *image_info,
    Image *image)
  MagickBooleanType SyncImagesSettings(const ImageInfo *image_info,
    Image *image)
</pre>

<p>A description of each parameter follows:</p></ol>

<h5>image_info</h5>
<ol><p>the image info.</p></ol>

<h5>image</h5>
<ol><p>the image.</p></ol>

 </div>

</div>

<div id="linkbar">
 <!--    <span id="linkbar-west">&nbsp;</span>  -->
    <span id="linkbar-center">
      <a href="http://www.imagemagick.org/discourse-server/">Discourse Server</a> &bull;
    <a href="http://www.imagemagick.org/MagickStudio/scripts/MagickStudio.cgi">Studio</a>
    </span>
    <span id="linkbar-east">&nbsp;</span>
  </div>
  <div class="footer">
    <span id="footer-west">&copy; 1999-2010 ImageMagick Studio LLC</span>
    <span id="footer-east"> <a href="../http://www.imagemagick.org/script/contact.php">Contact the Wizards</a></span>
  </div>
  <div style="clear: both; margin: 0; width: 100%; "></div>
</body>
</html>