code: def _blur_median(image, ksize):
      if ksize % 2 == 0:
          ksize += 1
      if ksize <= 1:
          return image
      return cv2.medianBlur(_normalize_cv2_input_arr_(image), ksize)
  
imports: from __future__ import print_function, division, absolute_import
  import numpy
  import cv2
  from imgaug.imgaug import _normalize_cv2_input_arr_
  from .None import meta
  from .None import color
  from ..None import dtypes
  from ..None import parameters
label_desc: Use image node_id 4 for calling a global function with example usage: _blur_median(image, ksize) and returns: cv2, image