from image_utils import logging # 从image_utils.py中导入logging对象
from PIL import Image
import logging
import numpy as np

def crop_image(image, crop_region):
    """
    裁剪图像
    :param image: 输入图像，PIL.Image对象
    :param crop_region: 裁剪区域,格式为(上,下,左,右)
    :return: 裁剪后的图像
    """
    try:
        logging.info(f"开始裁剪图像，裁剪区域,{crop_region}")
        
        # 从crop_region中提取上、下、左、右的坐标
        top, bottom, left, right = crop_region

        # 如果image是numpy数组，将其转换为PIL.Image对象
        if isinstance(image, np.ndarray):
            image = Image.fromarray(image)
        
        
        # 直接使用切片操作，裁剪图像 image 生成裁剪后的图像 cropped_image
        cropped_image = image.crop((left, top, right, bottom))
        
        return cropped_image
    except Exception as e:
        raise ValueError(f"Error occurred while cropping image: {e}")