cupyx.scipy.ndimage.generic_filter1d#
- cupyx.scipy.ndimage.generic_filter1d(input, function, filter_size, axis=-1, output=None, mode='reflect', cval=0.0, origin=0)[source]#
Compute a 1D filter along the given axis using the provided raw kernel.
Unlike the scipy.ndimage function, this does not support the
extra_arguments
orextra_keywordsdict
arguments and has significant restrictions on thefunction
provided.- Parameters:
input (cupy.ndarray) – The input array.
function (cupy.RawKernel) – The kernel to apply along each axis.
filter_size (int) – Length of the filter.
axis (int) – The axis of input along which to calculate. Default is -1.
output (cupy.ndarray, dtype or None) – The array in which to place the output. Default is is same dtype as the input.
mode (str) – The array borders are handled according to the given mode (
'reflect'
,'constant'
,'nearest'
,'mirror'
,'wrap'
). Default is'reflect'
.cval (scalar) – Value to fill past edges of input if mode is
'constant'
. Default is0.0
.origin (int) – The origin parameter controls the placement of the filter, relative to the center of the current element of the input. Default is
0
.
- Returns:
The result of the filtering.
- Return type:
Note
The provided function (as a RawKernel) must have the following signature. Unlike most functions, this should not utilize blockDim/blockIdx/threadIdx:
__global__ void func(double *input_line, ptrdiff_t input_length, double *output_line, ptrdiff_t output_length)
See also