PySide6 矩形图像转圆形图像

from PIL import ImageDraw, Image, ImageQt
from PySide6.QtGui import QPixmap, QImage

def circular_avatar(image_path):
    with Image.open(image_path) as img:
        # 假设我们要裁剪的正方形边长为 min_size
        min_size = min(img.size[0], img.size[1])
		# 我是从上向下裁剪一个正方形，可以修改参数调整你要裁剪的起点；如居中裁剪等等
        left = 0
        right = img.width
        top = 0
        bottom = top + min_size 

        # 裁剪图片
        img_cropped = img.crop((left, top, right, bottom ))

        mask = Image.new('L', img_cropped.size, 0)
        draw = ImageDraw.Draw(mask)
        draw.ellipse((0, 0) + img_cropped.size, fill=255)

        # 将裁剪后的图片与蒙版结合，得到圆形图片
        img_circular = img_cropped.copy()
        img_circular.putalpha(mask)

        qt_image = ImageQt.ImageQt(img_circular)
        qt_pixmap = QPixmap.fromImage(qt_image)
    return qt_pixmap