import numpy as np
import matplotlib.pyplot as plt
from skimage import data,io,filters
A=np.zeros((100,100))
for i in range(20,81):
A[90,i]=255
for i in range(20,81):
A[40,i]=255
import matplotlib.pyplot as plt
from skimage import data,io,filters
A=np.zeros((100,100))
for i in range(20,81):
A[90,i]=255
for i in range(20,81):
A[40,i]=255