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1 /*
2   Copyright 1999-2019 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 image distortion methods.
17 */
18 #ifndef MAGICKCORE_DISTORT_H
19 #define MAGICKCORE_DISTORT_H
20 
21 #if defined(__cplusplus) || defined(c_plusplus)
22 extern "C" {
23 #endif
24 
25 /*
26   These two enum are linked, with common enumerated values.  Both
27   DistortImages() and SparseColor() often share code to determine functional
28   coefficients for common methods.
29 
30   Caution should be taken to ensure that only the common methods contain the
31   same enumerated value, while all others remain unique across both
32   enumerations.
33 */
34 typedef enum
35 {
36   UndefinedDistortion,
37   AffineDistortion,
38   AffineProjectionDistortion,
39   ScaleRotateTranslateDistortion,
40   PerspectiveDistortion,
41   PerspectiveProjectionDistortion,
42   BilinearForwardDistortion,
43   BilinearDistortion = BilinearForwardDistortion,
44   BilinearReverseDistortion,
45   PolynomialDistortion,
46   ArcDistortion,
47   PolarDistortion,
48   DePolarDistortion,
49   Cylinder2PlaneDistortion,
50   Plane2CylinderDistortion,
51   BarrelDistortion,
52   BarrelInverseDistortion,
53   ShepardsDistortion,
54   ResizeDistortion,
55   SentinelDistortion
56 } DistortMethod;
57 
58 typedef enum
59 {
60   UndefinedColorInterpolate = UndefinedDistortion,
61   BarycentricColorInterpolate = AffineDistortion,
62   BilinearColorInterpolate = BilinearReverseDistortion,
63   PolynomialColorInterpolate = PolynomialDistortion,
64   ShepardsColorInterpolate = ShepardsDistortion,
65   /*
66     Methods unique to SparseColor().
67   */
68   VoronoiColorInterpolate = SentinelDistortion,
69   InverseColorInterpolate,
70   ManhattanColorInterpolate
71 } SparseColorMethod;
72 
73 extern MagickExport Image
74   *AffineTransformImage(const Image *,const AffineMatrix *,ExceptionInfo *),
75   *DistortImage(const Image *,const DistortMethod,const size_t,
76     const double *,MagickBooleanType,ExceptionInfo *exception),
77   *DistortResizeImage(const Image *,const size_t,const size_t,ExceptionInfo *),
78   *RotateImage(const Image *,const double,ExceptionInfo *),
79   *SparseColorImage(const Image *,const SparseColorMethod,const size_t,
80     const double *,ExceptionInfo *);
81 
82 #if defined(__cplusplus) || defined(c_plusplus)
83 }
84 #endif
85 
86 #endif
87