getting errors reading SVS macro and thumbnail images on Windows, not Linux
bgilbert at cs.cmu.edu
Fri May 22 11:47:54 EDT 2015
On 05/21/2015 01:15 PM, Toby Cornish wrote:
> This has failed on all svs files I have tried. All the files have an
> embedded label, thumb, and macro image. I can read all of them using
> the code below on Linux, but I can only read the label image under Windows.
I'm seeing the same problem with CMU-1.svs. It's worse with CMU-1.ndpi
and CMU-1.mrxs: neither of them will even open successfully.
Interestingly, SVS label images are compressed with LZW, while the other
associated images are JPEG.
The problem appears to be some compiler optimizations I enabled a few
months ago. Does last night's build fix the crashes for you?
For the record, the relevant crash was this one:
> WindowsError: exception: access violation reading 0x00000000
Python ctypes uses SEH to catch the access violation and prevent the
entire process from crashing. The openslide_t is then in an
inconsistent state, and when we try to close the slide, we hit an
assertion failure in OpenSlide:
> assertion failed: (tc->outstanding == 0)
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