当我试图对原始数据进行JPEG解压缩(旧式JPEG压缩，而不是JPEG-LS和JPEG2000)时，我得到以下错误：Traceback (most recent call last):

File "raw-reader.py", line 766, in

raw_image_data = imageio.imread(io.BytesIO(raw_packed_image_data))

File "/home/ian/.local/lib/python3.6/site-packages/imageio/core/functions.py", line 206, in imread

reader = read(uri, format, 'i', **kwargs)

File "/home/ian/.local/lib/python3.6/site-packages/imageio/core/functions.py", line 129, in get_reader

return format.get_reader(request)

File "/home/ian/.local/lib/python3.6/site-packages/imageio/core/format.py", line 168, in get_reader

return self.Reader(self, request)

File "/home/ian/.local/lib/python3.6/site-packages/imageio/core/format.py", line 217, in __init__

self._open(**self.request.kwargs.copy())

File "/home/ian/.local/lib/python3.6/site-packages/imageio/plugins/pillow.py", line 398, in _open

pilmode=pilmode, as_gray=as_gray)

File "/home/ian/.local/lib/python3.6/site-packages/imageio/plugins/pillow.py", line 122, in _open

self._im = factory(self._fp, '')

File "/home/ian/.local/lib/python3.6/site-packages/PIL/JpegImagePlugin.py", line 780, in jpeg_factory

im = JpegImageFile(fp, filename)

File "/home/ian/.local/lib/python3.6/site-packages/PIL/ImageFile.py", line 102, in __init__

self._open()

File "/home/ian/.local/lib/python3.6/site-packages/PIL/JpegImagePlugin.py", line 339, in _open

handler(self, i)

File "/home/ian/.local/lib/python3.6/site-packages/PIL/JpegImagePlugin.py", line 166, in SOF

raise SyntaxError("cannot handle %d-bit layers" % self.bits)

SyntaxError: cannot handle 14-bit layers

图像中的原始数据是14位JPEG数据，imageio无法读取。当我尝试使用pillow时，它甚至没有识别出JPEG格式的数据。我现在的问题是：如何在不编写自己的JPEG解压器的情况下解压数据，同时记住数据是14位的？在

我的代码：

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文件raw_data.dat是一个纯粹包含用JPEG压缩的原始图像数据的文件。链接到raw_data.dat