Function mrpt::math::dft2_real

• Defined in File fourier.h

Function Documentation

void mrpt::math::dft2_real(const CMatrixFloat &in_data, CMatrixFloat &out_real, CMatrixFloat &out_imag)

Compute the 2D Discrete Fourier Transform (DFT) of a real matrix, returning the real and imaginary parts separately.

See also

fft_real, ifft2_read, fft2_complex If the dimensions of the matrix are powers of two, the fast fourier transform (FFT) is used instead of the general algorithm.

Parameters:

• in_data – The N_1xN_2 matrix.

• out_real – The N_1xN_2 output matrix which will store the real values (user has not to initialize the size of this matrix).

• out_imag – The N_1xN_2 output matrix which will store the imaginary values (user has not to initialize the size of this matrix).