code: def test_imdecode(self):
      try:
          import cv2
      except ImportError:
          raise unittest.SkipTest("Unable to import cv2.")
      for img in self.IMAGES:
          with open(img, "rb") as fp:
              str_image = fp.read()
              image = mx.image.imdecode(str_image, to_rgb=0)
          cv_image = cv2.imread(img)
          assert_almost_equal(image.asnumpy(), cv_image)
  
imports: import os
  import mxnet
  import numpy
  import scipy.ndimage
  from mxnet.test_utils import *
  from common import xfail_when_nonstandard_decimal_separator
  import shutil
  import tempfile
  import unittest
  import pytest
label_desc: Use image node_id 5 for calling the TestImage obj's underlying member method code with example usage: obj.test_imdecode() without return types