如何将图像裁剪为例如形状.在 Discord.py 中使用 Pillow 圈?

How can I crop an image to a shape for eg. circle using Pillow in Discord.py?

我当前的代码:

@client.event
async def on_member_join(member : discord.Member):
    welcome = Image.open('Welcome.jpg')
    
    asset = member.avatar_url_as(size = 128)
    data = BytesIO(await asset.read())
    pfp = Image.open(data)
    pfp = pfp.resize((500, 500))
    welcome.paste(pfp, (657, 257))
    welcome.save("profile.jpg")

解决方案

试试这个

import numpy as np
from PIL import Image, ImageDraw

@client.event
async def on_member_join(member : discord.Member):
    welcome = Image.open('Welcome.jpg')
    
    asset = member.avatar_url_as(size = 128)
    data = BytesIO(await asset.read())
    img=Image.open(data).convert("RGB")
    npImage=np.array(img)
    h,w=img.size
    
    alpha = Image.new('L', img.size,0)
    draw = ImageDraw.Draw(alpha)
    draw.pieslice([0,0,h,w],0,360,fill=255)
    npAlpha=np.array(alpha)
    npImage=np.dstack((npImage,npAlpha))
    pfp = Image.fromarray(npImage)
    welcome.paste(pfp, (657, 257))
    welcome.save("profile.jpg")