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      1 /*
      2   Copyright 1999-2016 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.
      6   obtain a copy of the License at
      7 
      8     http://www.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