尝试在Python语言中将base64字符串转换为图像时出错

import base64
from io import BytesIO
from PIL import Image

def base64_to_image(base64_string):
    # 移除base64字符串中的头部信息
    base64_data = base64_string.split(',')[1]

    try:
        # 解码base64字符串为二进制数据
        image_data = base64.b64decode(base64_data)
        
        # 创建BytesIO对象以读取二进制数据
        image_stream = BytesIO(image_data)
        
        # 打开图像文件
        image = Image.open(image_stream)
        
        # 可选：保存图像文件
        image.save('output.png')
        
        return image
    except Exception as e:
        print("转换为图像时出错：", str(e))
        return None

# 示例调用
base64_str = "data:image/png;base64,iVBORw0KGg..."
result_image = base64_to_image(base64_str)

if result_image:
    result_image.show()