How we can read the 16 uint jpeg images in python please suggest me the libraries which can read the these type of files in python. i tried matplotlib, scipy, scikit-image, medpy ,Pil ,opencv, numpy libraries. when we are using these libraries i am getting the out put as:
raise IOError("cannot identify image file")
IOError: cannot identify image file
please help me
find the file from the link
https://drive.google.com/file/d/0B4l5GiM7kBXraDEyMXdseENfUlE/edit?usp=sharing
Having 16-bit JPEG images sounds a bit strange, as the JPEG standard does not support 16-bit images. It has 12-bit images, though. Unfortunately, most readers only support the usual 8-bits/pixel RGB images, so even with the 12-bit images this may be a bit challenging.
One useful test could be to try:
hdr = open("myimage.jpeg", "rb").read(2)
print "{:02x} {:02x}".format(ord(hdr[0]), ord(hdr[1]))
If your file is a JPEG file, it should start with:
ff d8
If you do not get those, then the file is something else. Is there any program you can use to open the file? Which program produced the files?
This is the standard for 16bits grayscale lossless jpeg (recommendations ITU-T T.81). Now replaced with JPEG-LS and JPEG-2000.
This specific type of JPEG has single channel grayscale on a 16bits wide word, unlike 3 components RGB one on a 24bits/8 bits per channel.
Try using thorfdbg's libjpeg as it supports this type of old jpeg standard: https://github.com/thorfdbg/libjpeg
