00001 /* +---------------------------------------------------------------------------+ 00002 | The Mobile Robot Programming Toolkit (MRPT) C++ library | 00003 | | 00004 | http://mrpt.sourceforge.net/ | 00005 | | 00006 | Copyright (C) 2005-2008 University of Malaga | 00007 | | 00008 | This software was written by the Machine Perception and Intelligent | 00009 | Robotics Lab, University of Malaga (Spain). | 00010 | Contact: Jose-Luis Blanco <jlblanco@ctima.uma.es> | 00011 | | 00012 | This file is part of the MRPT project. | 00013 | | 00014 | MRPT is free software: you can redistribute it and/or modify | 00015 | it under the terms of the GNU General Public License as published by | 00016 | the Free Software Foundation, either version 3 of the License, or | 00017 | (at your option) any later version. | 00018 | | 00019 | MRPT is distributed in the hope that it will be useful, | 00020 | but WITHOUT ANY WARRANTY; without even the implied warranty of | 00021 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | 00022 | GNU General Public License for more details. | 00023 | | 00024 | You should have received a copy of the GNU General Public License | 00025 | along with MRPT. If not, see <http://www.gnu.org/licenses/>. | 00026 | | 00027 +---------------------------------------------------------------------------+ */ 00028 #ifndef mrpt_math_fourier_H 00029 #define mrpt_math_fourier_H 00030 00031 #include <mrpt/utils/utils_defs.h> 00032 #include <mrpt/math/CMatrixTemplateNumeric.h> 00033 #include <mrpt/math/CVectorTemplate.h> 00034 00035 /*--------------------------------------------------------------- 00036 Namespace 00037 ---------------------------------------------------------------*/ 00038 namespace mrpt 00039 { 00040 namespace math 00041 { 00045 void MRPTDLLIMPEXP fft_real( vector_float &in_realData, 00046 vector_float &out_FFT_Re, 00047 vector_float &out_FFT_Im, 00048 vector_float &out_FFT_Mag ); 00049 00057 void MRPTDLLIMPEXP dft2_real( 00058 const CMatrixFloat &in_data, 00059 CMatrixFloat &out_real, 00060 CMatrixFloat &out_imag ); 00061 00071 void MRPTDLLIMPEXP idft2_real( 00072 const CMatrixFloat &in_real, 00073 const CMatrixFloat &in_imag, 00074 CMatrixFloat &out_data ); 00075 00084 void MRPTDLLIMPEXP dft2_complex( 00085 const CMatrixFloat &in_real, 00086 const CMatrixFloat &in_imag, 00087 CMatrixFloat &out_real, 00088 CMatrixFloat &out_imag); 00089 00098 void MRPTDLLIMPEXP idft2_complex( 00099 const CMatrixFloat &in_real, 00100 const CMatrixFloat &in_imag, 00101 CMatrixFloat &out_real, 00102 CMatrixFloat &out_imag ); 00103 00104 00107 void MRPTDLLIMPEXP cross_correlation_FFT( 00108 const CMatrixFloat &A, 00109 const CMatrixFloat &B, 00110 CMatrixFloat &out_corr ); 00111 00112 } // End of MATH namespace 00113 00114 } // End of namespace 00115 00116 #endif
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