code: def draw_ellipse(img, center, axis):
      rr, cc = draw.ellipse(
          center[0], center[1], axis[0], axis[1], shape=img.shape
      )
      img[rr, cc] = 1
      return img
  
file_path: dipy/doc/examples/register_binary_fuzzy.py
imports: import numpy
  import matplotlib.pyplot
  from skimage import draw, filters
  from dipy.align.imwarp import SymmetricDiffeomorphicRegistration
  from dipy.align.metrics import SSDMetric
  from dipy.viz import regtools
label_desc: Use image node_id 1 for calling a global function with example usage: draw_ellipse(img, center, axis) and returns: img