Function wrap1d

Modules/Pharmacokinetics/include/mitkConvolutionHelper.h:36–47

\brief Wraps (circularly shifts) a 1D convolution kernel. * * Performs a circular shift of the kernel by half its length, which is required * for proper FFT-based convolution. * \param[in] kernel The input kernel array. * \return The wrapped kernel array. */

     * \param[in] kernel The input kernel array.
     * \return The wrapped kernel array. */
inline    itk::Array<double> wrap1d(itk::Array<double> kernel)
        {
            int dim = kernel.GetNumberOfElements();
            itk::Array<double> wrappedKernel(dim);
            wrappedKernel.fill(0.);
                    for(int i=0; i< dim; ++i)
                    {
                        wrappedKernel.SetElement(i, kernel.GetElement((i+(dim/2))%dim));
                    }

            return wrappedKernel;
        }

    /** \brief Zero-pads a 1D array to a specified size.
     *