SSD Tensorflow:UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start

SSD Tensorflow:UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start

我们在运行SSD Tensorflow版本的时候，会出现以下问题，我运行的命令为：

DATASET_DIR=VOC2012/OUTPUT_DIR=tfrecordspython tf_convert_data.py \ --dataset_name=pascalvoc \ --dataset_dir=${DATASET_DIR} \ --output_name=voc_2012_train \ --output_dir=${OUTPUT_DIR}

通过百度是搜不到github上面的issues上面的答案的，我这里把问题的解决方法写出来，希望帮助大家玩SSD。错误信息为：

Converting image 1/5138Traceback (most recent call last): File "tf_convert_data.py", line 59, in tf.app.run() File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/platform/app.py", line 48, in run _sys.exit(main(_sys.argv[:1] + flags_passthrough)) File "tf_convert_data.py", line 54, in main pascalvoc_to_tfrecords.run(FLAGS.dataset_dir, FLAGS.output_dir, FLAGS.output_name) File "/home/xyxt/Downloads/SSD-Tensorflow/datasets/pascalvoc_to_tfrecords.py", line 218, in run _add_to_tfrecord(dataset_dir, img_name, tfrecord_writer) File "/home/xyxt/Downloads/SSD-Tensorflow/datasets/pascalvoc_to_tfrecords.py", line 177, in _add_to_tfrecord _process_image(dataset_dir, name) File "/home/xyxt/Downloads/SSD-Tensorflow/datasets/pascalvoc_to_tfrecords.py", line 83, in _process_image image_data = tf.gfile.FastGFile(filename, 'r').read() File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/lib/io/file_io.py", line 126, in read pywrap_tensorflow.ReadFromStream(self._read_buf, length, status)) File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/lib/io/file_io.py", line 94, in _prepare_value return compat.as_str_any(val) File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/util/compat.py", line 106, in as_str_any return as_str(value) File "/usr/local/lib/python3.5/dist-packages/tensorflow/python/util/compat.py", line 84, in as_text return bytes_or_text.decode(encoding)UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

解决办法为：

pascalvoc_to_tfrecords.py image_data = tf.gfile.FastGFile(filename, 'r').read() 改成： image_data = tf.gfile.FastGFile(filename, 'rb').read()

就可以了。

参考文献

[1].can't create dataset: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte . https://github.com/balancap/SSD-Tensorflow/issues/108

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