使用Python调整图像大小，同时保持其比例不变

from PIL import Image

def resize_image(input_image_path, output_image_path, size):
    original_image = Image.open(input_image_path)
    width, height = original_image.size
    aspect_ratio = width / height

    # 计算调整后的图像大小
    if width > height:
        new_width = size
        new_height = int(size / aspect_ratio)
    else:
        new_width = int(size * aspect_ratio)
        new_height = size

    # 调整图像大小并保存
    resized_image = original_image.resize((new_width, new_height))
    resized_image.save(output_image_path)

# 调用示例
input_image_path = "input.jpg"
output_image_path = "output.jpg"
size = 500

resize_image(input_image_path, output_image_path, size)