擅长:python、mysql、java
<p>此版本适用于:</p>
<pre><code>#!/usr/bin/env python3
from PIL import Image, ImageDraw
import matplotlib.pyplot as plt
def ima(n,m):
"""Create and return an nxn gradient image"""
what=Image.new(mode='L', size=(n,n), color=m)
mat=what.load()
for x in range(n):
for y in range(n):
mat[x,y]=x%256
return what
# Create image 200x200
image=ima(200,255)
# Get drawing handle
draw=ImageDraw.Draw(image)
draw.ellipse([(50,50),(190,245)],fill='white',outline='white')
# Display result
image.show()
</code></pre>
<p><a href="https://i.stack.imgur.com/zrtgG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zrtgG.png" alt="enter image description here"/></a></p>