code: def cvt2HeatmapImg(img):
      img = (np.clip(img, 0, 1) * 255).astype(np.uint8)
      img = cv2.applyColorMap(img, cv2.COLORMAP_JET)
      return img
  
imports: import numpy
  import cv2
  from skimage import io
label_desc: Use image node_id 5 for calling a global function with example usage: cvt2HeatmapImg(img) and returns: img