classifiers.py 文件源码

def fetch_cvimage_from_url(url, maxsize=10 * 1024 * 1024):
    req = requests.get(url, timeout=5, stream=True)
    content = ''
    for chunk in req.iter_content(2048):
        content += chunk
        if len(content) > maxsize:
            req.close()
            raise ValueError('Response too large')
    img_array = np.asarray(bytearray(content), dtype=np.uint8)
    cv2_img_flag = cv2.CV_LOAD_IMAGE_COLOR
    image = cv2.imdecode(img_array, cv2_img_flag)
    return image