Does OpenSlide support BigTIFF Aperio files? Also, compiling from source?
Zak Fallows
openslide at m.allo.ws
Fri Sep 9 18:54:14 EDT 2011
Dear OpenSlide Users,
I have a few questions:
1. Does OpenSlide support BigTIFF Aperio .SVS files, with 64-bit
offsets? The OpenSlide homepage says that version 3.2.2 (June 2010)
added "untested BigTIFF support", but is that just for generic (flat)
tiled TIFFs, or does that extend to TIFF-based pyramidal formats like
Aperio?
2. In order to open a BigTIFF Aperio file with OpenSlide, do I need to
install the an extra BigTIFF library, beyond the normal dependencies of
OpenSlide? Do I need to install LibTIFF 4 Beta, instead of the latest
stable release of LibTIFF 3? I have OpenSlide 3.2.4 up and running under
Ubuntu 10.10 and Windows 7, but I am pretty sure I never installed a
BigTIFF library on either. I installed on Windows 7 by just downloading
"openslide-win32.zip" and putting the DLLs on my PATH, and I don't think
the included "libtiff-3.dll" supports BigTIFF.
3. If I need a different version of LibTIFF for BigTIFFs, will I have to
compile it from source on Windows 7? What is the easiest way to upgrade
OpenSlide on Windows to read BigTIFFs?
4. I might like to try compiling OpenSlide and all the dependencies from
source under Windows 7, how difficult will that be? I realize this
question is much more open ended than the prior three. I have some
experience compiling C libraries from source on Ubuntu, but no
experience doing so on Windows.
Thank you,
Zak Fallows
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