public static Complex[,] FFT2D(Mat <byte> src)
{
Complex[,] data = new Complex[src.Rows, src.Cols];
for (int i = 0; i < src.Rows; i++)
{
for (int j = 0; j < src.Cols; j++)
{
data[i, j] = new Complex(src[i, j], 0);
}
}
return(Fourier.FFT2D(data, FourierDirection.Forward));
}
public static Mat <double> IFFT2D(Complex[,] data, int rows, int cols)
{
data = Fourier.FFT2D(data, FourierDirection.Backward);
Mat <double> result = new Mat <double>(rows, cols);
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
result[i, j] = data[i, j].real;
}
}
return(result);
}