dg::CSRMedianFilter Struct Reference

Compute (lower) Median of input numbers. More...

Public Member Functions
template<class real_type >
DG_DEVICE void	operator() (unsigned i, const int *row_offsets, const int *column_indices, const real_type *values, const real_type *x, real_type *y)

Detailed Description

Compute (lower) Median of input numbers.

The (lower) median of N numbers is the N/2 (rounded up) largest number. Another definition is implicit \( \text{Median}(x) := \{ m : \sum_i \text{sgn}(x_i - m) = 0\} \) The Median is taken over all points contained in the stencil given by the row and column indices. The matrix values are ignored.

See also

dg::blas2::stencil dg::create::window_stencil

Member Function Documentation

operator()()

template<class real_type >

DG_DEVICE void dg::CSRMedianFilter::operator() ( unsigned  i, const int *  row_offsets, const int *  column_indices, const real_type *  values, const real_type *  x, real_type *  y  )

inline

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The documentation for this struct was generated from the following file:

• topology/filter.h