UnicodeDecodeError when running construct_delta_patch.py

[sv303]

Hello, I run into a UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte error when running scripts/construct_delta_patch.py. Searching online, this looks like Python not opening a file in binary format when it should be. My Python version is 3.7.4 and TensorFlow version is 1.15.0. Is there an older version I should use instead? Thank you.

Full error message:

Traceback (most recent call last):
  File "scripts/construct_delta_patch.py", line 220, in <module>
    compute_and_save_delta_patch()
  File "scripts/construct_delta_patch.py", line 192, in compute_and_save_delta_patch
    'dog-bamboo_forest*'))))
  File "scripts/construct_delta_patch.py", line 39, in load_imgs
    fnames)
  File "/Users/.../opt/anaconda3/lib/python3.7/multiprocessing/pool.py", line 268, in map
    return self._map_async(func, iterable, mapstar, chunksize).get()
  File "/Users/.../opt/anaconda3/lib/python3.7/multiprocessing/pool.py", line 657, in get
    raise self._value
  File "/Users/.../opt/anaconda3/lib/python3.7/multiprocessing/pool.py", line 121, in worker
    result = (True, func(*args, **kwds))
  File "/Users/.../opt/anaconda3/lib/python3.7/multiprocessing/pool.py", line 44, in mapstar
    return list(map(*args))
  File "scripts/construct_delta_patch.py", line 36, in <lambda>
    Image.open(tf.gfile.GFile(f)).convert('RGB').resize(
  File "/Users/.../opt/anaconda3/lib/python3.7/site-packages/PIL/Image.py", line 2775, in open
    prefix = fp.read(16)
  File "/Users/.../opt/anaconda3/lib/python3.7/site-packages/tensorflow_core/python/lib/io/file_io.py", line 128, in read
    pywrap_tensorflow.ReadFromStream(self._read_buf, length))
  File "/Users/.../opt/anaconda3/lib/python3.7/site-packages/tensorflow_core/python/lib/io/file_io.py", line 98, in _prepare_value
    return compat.as_str_any(val)
  File "/Users/.../opt/anaconda3/lib/python3.7/site-packages/tensorflow_core/python/util/compat.py", line 123, in as_str_any
    return as_str(value)
  File "/Users/.../opt/anaconda3/lib/python3.7/site-packages/tensorflow_core/python/util/compat.py", line 93, in as_text
    return bytes_or_text.decode(encoding)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte

[Piyushi-0]

@sv303 As a workaround I modified the function load_imgs to replace the return statement with

return pool.map(
            lambda f: np.array(
                Image.open(f).convert('RGB').resize(
                    shape, Image.BILINEAR)).astype(np.float32) - np.expand_dims(
                        np.expand_dims(_CHANNEL_MEANS, 0), 0).astype(np.float32),
            fnames)

& it seems to work. Please let me know if you found a better way.