MagickCore  7.1.0
Convert, Edit, Or Compose Bitmap Images
resample.h
1 /*
2  Copyright @ 2007 ImageMagick Studio LLC, a non-profit organization
3  dedicated to making software imaging solutions freely available.
4 
5  You may not use this file except in compliance with the License. You may
6  obtain a copy of the License at
7 
8  https://imagemagick.org/script/license.php
9 
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15 
16  MagickCore graphic resample methods.
17 */
18 #ifndef MAGICKCORE_RESAMPLE_H
19 #define MAGICKCORE_RESAMPLE_H
20 
21 #include "MagickCore/cache-view.h"
22 
23 #if defined(__cplusplus) || defined(c_plusplus)
24 extern "C" {
25 #endif
26 
27 /*
28  WARNING: The order of this table must also match the order of a table
29  located in AcquireResizeFilter() in "resize.c" otherwise the users filter
30  will not match the actual filter that is setup.
31 */
32 typedef enum
33 {
34  UndefinedFilter,
35  PointFilter,
36  BoxFilter,
37  TriangleFilter,
38  HermiteFilter,
39  HannFilter,
40  HammingFilter,
41  BlackmanFilter,
42  GaussianFilter,
43  QuadraticFilter,
44  CubicFilter,
45  CatromFilter,
46  MitchellFilter,
47  JincFilter,
48  SincFilter,
49  SincFastFilter,
50  KaiserFilter,
51  WelchFilter,
52  ParzenFilter,
53  BohmanFilter,
54  BartlettFilter,
55  LagrangeFilter,
56  LanczosFilter,
57  LanczosSharpFilter,
58  Lanczos2Filter,
59  Lanczos2SharpFilter,
60  RobidouxFilter,
61  RobidouxSharpFilter,
62  CosineFilter,
63  SplineFilter,
64  LanczosRadiusFilter,
65  CubicSplineFilter,
66  SentinelFilter /* a count of all the filters, not a real filter */
67 } FilterType;
68 
69 /*
70  Backward compatibility for the more correctly named Jinc Filter. Original
71  source of this filter is from "zoom" but it refers to a reference by Pratt,
72  who does not actualy name the filter.
73 
74  also miss-spellings of common filters
75 */
76 #define BesselFilter JincFilter
77 #define WelshFilter WelchFilter
78 #define HanningFilter HannFilter
79 
80 typedef struct _ResampleFilter
81  ResampleFilter;
82 
83 extern MagickExport MagickBooleanType
84  ResamplePixelColor(ResampleFilter *,const double,const double,
85  PixelInfo *,ExceptionInfo *),
86  SetResampleFilterInterpolateMethod(ResampleFilter *,
87  const PixelInterpolateMethod),
88  SetResampleFilterVirtualPixelMethod(ResampleFilter *,
89  const VirtualPixelMethod);
90 
91 extern MagickExport ResampleFilter
92  *AcquireResampleFilter(const Image *,ExceptionInfo *),
93  *DestroyResampleFilter(ResampleFilter *);
94 
95 extern MagickExport void
96  ScaleResampleFilter(ResampleFilter *,const double,const double,const double,
97  const double),
98  SetResampleFilter(ResampleFilter *,const FilterType);
99 
100 #if defined(__cplusplus) || defined(c_plusplus)
101 }
102 #endif
103 
104 #endif
_ExceptionInfo
Definition: exception.h:102
_Image
Definition: image.h:152
_PixelInfo
Definition: pixel.h:174
_ResampleFilter
Definition: resample.c:94