Module « scipy.signal »

Fonction medfilt2d - module scipy.signal

Signature de la fonction medfilt2d

def medfilt2d(input, kernel_size=3) 

Description

medfilt2d.__doc__

    Median filter a 2-dimensional array.

    Apply a median filter to the `input` array using a local window-size
    given by `kernel_size` (must be odd). The array is zero-padded
    automatically.

    Parameters
    ----------
    input : array_like
        A 2-dimensional input array.
    kernel_size : array_like, optional
        A scalar or a list of length 2, giving the size of the
        median filter window in each dimension.  Elements of
        `kernel_size` should be odd.  If `kernel_size` is a scalar,
        then this scalar is used as the size in each dimension.
        Default is a kernel of size (3, 3).

    Returns
    -------
    out : ndarray
        An array the same size as input containing the median filtered
        result.

    See also
    --------
    scipy.ndimage.median_filter

    Notes
    -----
    This is faster than `medfilt` when the input dtype is ``uint8``,
    ``float32``, or ``float64``; for other types, this falls back to
    `medfilt`; you should use `scipy.ndimage.median_filter` instead as it is
    much faster.  In some situations, `scipy.ndimage.median_filter` may be
    faster than this function.