1 /* 2 Copyright 1999-2021 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 discrete Fourier transform (DFT) methods. 17 */ 18 #ifndef MAGICKCORE_FFT_H 19 #define MAGICKCORE_FFT_H 20 21 #if defined(__cplusplus) || defined(c_plusplus) 22 extern "C" { 23 #endif 24 25 typedef enum 26 { 27 UndefinedComplexOperator, 28 AddComplexOperator, 29 ConjugateComplexOperator, 30 DivideComplexOperator, 31 MagnitudePhaseComplexOperator, 32 MultiplyComplexOperator, 33 RealImaginaryComplexOperator, 34 SubtractComplexOperator 35 } ComplexOperator; 36 37 extern MagickExport Image 38 *ComplexImages(const Image *,const ComplexOperator,ExceptionInfo *), 39 *ForwardFourierTransformImage(const Image *,const MagickBooleanType, 40 ExceptionInfo *), 41 *InverseFourierTransformImage(const Image *,const Image *, 42 const MagickBooleanType,ExceptionInfo *); 43 44 #if defined(__cplusplus) || defined(c_plusplus) 45 } 46 #endif 47 48 #endif 49