TypeError: Expected binary or unicode string, got item {

Question

我正在使用使用网络摄像头实时识别对象的自定义代码，但是在创建标签的过程中出现了这个错误，我使用的是 python 3.7 和 TensorFlow 1.15，这是错误的，并且有更简单的方法来使用 real- object 识别时间？

label map：

labels = [
    {'name':'1DIG', 'id':1},
    {'name':'2DIG', 'id':2}, 
    {'name':'3DIG', 'id':3}, 
    {'name':'4DIG', 'id':4},
]

with open(ANNOTATION_PATH + '\label_map.pbtxt', 'w') as f:
    for label in labels:
        f.write('item { \n')
        f.write('\tname:\'{}\'\n'.format(label['name']))
        f.write('\tid:{}\n'.format(label['id']))
        f.write('}\n')

tf记录的代码：

!python {SCRIPTS_PATH + '/generate_tfrecord.py'} -x {IMAGE_PATH + '/train'} -l {ANNOTATION_PATH + '/label_map.pbtxt'} -o {ANNOTATION_PATH + '/train.record'}
!python {SCRIPTS_PATH + '/generate_tfrecord.py'} -x{IMAGE_PATH + '/test'} -l {ANNOTATION_PATH + '/label_map.pbtxt'} -o {ANNOTATION_PATH + '/test.record'}

错误：

 Traceback (most recent call last):
      File "Tensorflow/scripts/generate_tfrecord.py", line 62, in <module>
        label_map_dict = label_map_util.get_label_map_dict(label_map)
      File "C:\Users\Gabriel\AppData\Local\Programs\Python\Python37\lib\site-packages\object_detection\utils\label_map_util.py", line 164, in get_label_map_dict
        label_map = load_labelmap(label_map_path)
      File "C:\Users\Gabriel\AppData\Local\Programs\Python\Python37\lib\site-packages\object_detection\utils\label_map_util.py", line 133, in load_labelmap
        label_map_string = fid.read()
      File "C:\Users\Gabriel\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\lib\io\file_io.py", line 122, in read
        self._preread_check()
      File "C:\Users\Gabriel\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\lib\io\file_io.py", line 84, in _preread_check
        compat.as_bytes(self.__name), 1024 * 512)
      File "C:\Users\Gabriel\AppData\Local\Programs\Python\Python37\lib\site-packages\tensorflow_core\python\util\compat.py", line 71, in as_bytes
        (bytes_or_text,))
    TypeError: Expected binary or unicode string, got item {
      name: "1DIG"
      id: 1
    }
    item {
      name: "2DIG"
      id: 2
    }
    item {
      name: "3DIG"

      id: 3
    }
   item {
      name: "4DIG"
      id: 4
    }

Answer 1

我在另一个链接中找到了答案：

TypeError: Expected binary or unicode string, got item error

您可能还需要检查xml_df.to_csv位置

Answer 2

最后一项之后的标签中有一个逗号。 去掉它