[ITK Community] Windows TIFF size limit

[Gib Bogle]

Thanks.  I have tracked down the reason for the crash reading this compressed tiff in Windows.  The compression is DEFLATE (AKA ZIP).  The function TIFFReaderInternal::CanRead() in itkTIFFImageIO.cxx checks for COMPRESSION_NONE, COMPRESSION_PACKBITS and COMPRESSION_LZW, although COMPRESSION_DEFLATE is covered elsewhere in the code.  I added this line:
|| this->m_compression == COMPRESSION_DEFLATE
and now the read proceeds successfully, as far as I can tell, and my program creates an uncompressed 4.5GB file.   This is progress!

Unfortunately the file that is created does not identify itself as a valid TIFF.
Irfanview says: Decode error!  Invalid or unsupported TIF file.
When I try to read it with ITK, the message is:
File: ...itkImageFileReader.hxx
Line: 143
Description: Could not create IO object for file preeq_u.tif
Tried to create one of the following:
JPEGImageIO
...
TIFFImageIO
...
You probably failed to set a file suffix, or set the suffix to an unsupported type.

Well, the suffix is obviously correct, so there is another problem with the file.

The saga continues...

Gib

________________________________
From: Brian Helba [brian.helba at kitware.com]
Sent: Friday, 7 March 2014 3:36 p.m.
To: Gib Bogle
Cc: community at itk.org
Subject: Re: [ITK Community] Windows TIFF size limit

FYI, ITK_COMPUTER_MEMORY_SIZE is only used to determine if certain tests will be added, and has no impact on how the toolkit is built.


On Thu, Mar 6, 2014 at 9:13 PM, Gib Bogle <g.bogle at auckland.ac.nz<mailto:g.bogle at auckland.ac.nz>> wrote:
Hello,

Can someone tell me whether the tiff size limit on Windows is 2GB, as a message from Luis Ibanez in 2010 said:
http://itk-insight-users.2283740.n2.nabble.com/Memory-limits-of-ITKImage-object-td5670422.html#a5670535
or unlimited as Brad Lowekamp recently wrote.  I followed (I think) Brad's advice, and rebuilt my ITK libraries on Windows with ITK_USE_64BITS_IDS selected, and providing ITK_COMPUTER_MEMORY_SIZE = 12 GB.  When I attempt to read the compressed version of a 4.5 GB tiff with ImageFileReader, the program crashes silently (no error is caught by 'catch').  I need to know whether or not this is the expected behaviour.

I am committed to processing some big multi-image tiffs, but I am having no luck with either Windows or Linux.  Help would be greatly appreciated.

Thanks
Gib

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--
Brian Helba
Medical Imaging
Kitware, Inc.
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