如何在不改变中间坐标的情况下调整图片框的大小

def adjust_image_box_size(center_x, center_y, width, height, new_width, new_height):
    # 计算原始图片框的左上角和右下角坐标
    left = center_x - width / 2
    top = center_y - height / 2
    right = center_x + width / 2
    bottom = center_y + height / 2

    # 计算新的图片框的左上角和右下角坐标
    new_left = center_x - new_width / 2
    new_top = center_y - new_height / 2
    new_right = center_x + new_width / 2
    new_bottom = center_y + new_height / 2

    # 计算新的中心坐标和宽高
    new_center_x = (new_left + new_right) / 2
    new_center_y = (new_top + new_bottom) / 2
    new_width = new_right - new_left
    new_height = new_bottom - new_top

    # 返回新的中心坐标和宽高
    return new_center_x, new_center_y, new_width, new_height

# 示例调用
center_x = 100
center_y = 100
width = 200
height = 150
new_width = 300
new_height = 200

new_center_x, new_center_y, new_width, new_height = adjust_image_box_size(center_x, center_y, width, height, new_width, new_height)
print("新的中心坐标：", new_center_x, new_center_y)
print("新的宽高：", new_width, new_height)