为什么在mysql中显示的不同的图片生成的图片特征码是一样的？

[hetao29]

我这边测试了不同的图片，生成的特征码一样，导致搜索结果完成不对。。

[hetao29]

我知道了，问题出在这里，如果url后面的图片文件名相同，不管路径如何，都会认为是相同的

 img_path = os.path.join(upload_path, os.path.basename(url))

def down_image(base64_image, url, upload_path):
    """
    将图片下载获取本地地址
    :param base64_image: base64 image   不包含头信息
    :param url: https:
    :param upload_path: 上传地址目录
    :return:
    """
    if base64_image is not None:
        if base64_image.startswith("data"):
            raise Exception('需要去掉头部如 data:image/jpg;base64,')
        img_path = os.path.join(upload_path, uuid.uuid4().__str__())
        with open(img_path, "wb+") as f:
            f.write(urlsafe_b64decode(base64_image))
    elif url is not None:
        img_path = os.path.join(upload_path, os.path.basename(url))
        if not os.path.exists(img_path):
            img_path = os.path.join(upload_path, os.path.basename(url))
            urlretrieve(url, img_path)
    else:
        raise Exception('Image and url are required')
    # 图片去除背景,将图片变成固定尺寸
    image_url_r = img_path+"_r"
    resize_image(img_path,image_url_r,448,448)
    # os.remove(img_path)
    return image_url_r