name 'Sharpen' is not defined

[sugizo]

see class Sharpen in
fimage/fimage/filters.py
but
can't use it

env
google colab

code

from fimage import FImage
from fimage.filters import *
from fimage.presets import *
import matplotlib.pyplot as plt
ori_img = 'maxresdefault.jpg'
res_img = 'Sharpen.png'
image = FImage(ori_img)
image.apply(Sharpen() )
image.save(res_img)
fig = plt.figure(figsize = (22, 22) )
plt.subplot(1, 3, 1)
plt.title("original")
image0 = plt.imread(ori_img)
plt.imshow(image0)
plt.subplot(1, 3, 2)
plt.title("Sharpen")
image0 = plt.imread(res_img)
plt.imshow(image0)

result

NameError                                 Traceback (most recent call last)
[<ipython-input-56-febf78888ce2>](https://localhost:8080/#) in <cell line: 3>()
      1 res_img = 'Sharpen.png'
      2 image = FImage(ori_img)
----> 3 image.apply(Sharpen() )
      4 image.save(res_img)

NameError: name 'Sharpen' is not defined

best regards