code: def get_img_heatmap(orig_img, activation_map):
      """Draw a heatmap on top of the original image using intensities from activation_map"""
      heatmap = cv2.applyColorMap(activation_map, cv2.COLORMAP_COOL)
      heatmap = cv2.cvtColor(heatmap, cv2.COLOR_BGR2RGB)
      img_heatmap = onp.float32(heatmap) + onp.float32(orig_img)
      img_heatmap = img_heatmap / onp.max(img_heatmap)
      img_heatmap *= 255
      return img_heatmap.astype(int)
  
imports: from __future__ import print_function
  import mxnet
  from mxnet import gluon, np, npx
  from mxnet import autograd
  from mxnet.gluon import nn
  import numpy
  import cv2
label_desc: Use image node_id 9 for calling a global function with example usage: get_img_heatmap(orig_img, activation_map) and returns: img_heatmap