[Insight-developers] reading 3D tiff (/dcm pair Mevis)

[Luis Ibanez]

Hi Rashindra,


                  Thanks for volunteering !


Don't worry, you don't have to do all the TIFF update by yourself.

We will assist you in the process.


The first thing you should take a look at, is the process for
mangling the library symbols.

Please look at the file:

      Insight/Utilities/itktiff/itk_tiff_mangle.h

The mangling of symbols is necessary to make possible to combine
ITK with other libraries that also include TIFF as a third party
library (e.g. VTK). If we don't mangle the TIFF symbols, then
duplicate symbols will be found at link time.

Typically, you can simply start with the current list of mangled
symbols, and as we test builds of InsightApplications, the linker
will let us know of any symbols that may be missing.

We should also pay a lot of attention to the following files:


     * RELEASE-DATE
     * README
     * VERSION
     * COPYRIGHT**

particularly the last one  :-)


The best way to proceed is for you to setup an Experimental
build from your machine (whether it is Windows, Linux, or Mac),
and once you can submit regularly from it, then start updating
the TIFF library in your *local* build, without committing
any thing yet to the CVS repository.

It will be very helpful if you also have an Experimental build
of InsightApplications, with USE_VTK enabled, since in this way
you will be able to monitor the level of compliance in the symbol
mangling.

Once you get a stable build in your machine, let the other
developers know by posting email to the Developers mailing list.

At that point we can select a date for you to commit the new
version of the library, and in the days following that commit
we will help you get this to work in other platforms. Typically
we expect to find issues in Borland, 64bits architectures, and
SunOS.


Please let us know if you have any questions,


    Thanks


       Luis


----------------------------
Rashindra Manniesing wrote:
> HI Luis and others,
> 
> Thanks for your reply. I did not realize that updating 3d-party libs may be
> a non-trivial task considering the multitude of supported platforms.
> 
> I would be interested to contribute,
> 
> Best regards, Rashindra.
> 
> -----Original Message-----
> From: Luis Ibanez [mailto:luis.ibanez at kitware.com] 
> Sent: Saturday, September 20, 2008 23:39
> To: Rashindra Manniesing
> Cc: insight-developers at itk.org
> Subject: Re: [Insight-developers] reading 3D tiff (/dcm pair Mevis)
> 
> 
> Hi Rashindra,
> 
> Please note that the current version of TIFF in ITK *does*
> support 3D images by using the multi-frame support.
> 
> You can save now an 3D itk::Image into a TIFF file, and you will
> get the slices as the frames into a multi-frame TIFF file.
> 
> 
> 
> That being said, updating the TIFF (and other) libraries in the
> Utilities directory is something that we could address in the
> upcoming releases.
> 
> We have added your request to the list of items for the 2008-2009
> roadmap of ITK:
> 
>     http://www.itk.org/Wiki/ITK_Roadmap_2008_2009
> 
> Please feel free to add any comments to the TIFF entry.
> http://www.itk.org/Wiki/ITK_Roadmap_2008_2009#TIFF
> 
> 
> Just for the record:
> 
>    Updating 3rd party libraries is easier said than done.
> 
>    Our previous experience have shown that a typical update
>    will take about three weeks of effort before the dust settles
>    down. This is mainly due to the need to get things working in
>    all the supported platforms.
> 
> 
> 
>     Regards,
> 
> 
> 
>        Luis
> 
> 
> ----------------------------
> Rashindra Manniesing wrote:
> 
>>Dear all,
>>
>> 
>>
>>I am interested in extending the itk imageIO factor to support the 
>>(Mevis) dcm/tiff file format (3D).
>>
>> 
>>
>>It seems that the current tiff fileformat only supports 2D files. 
>>However, since ITK uses libtiff, it should be easy to extend to 3D.
>>
>> 
>>
>>My questions:
>>
>> 
>>
>>-          the current libtiff version in itk does not seem to be the 
>>most recent one. Can we expect an update in the near future?
>>
>>-          Same question for gdcm
>>
>>-          Who is managing these libraries in itk, perhaps we can 
>>communicate directly.
>>
>> 
>>
>> 
>>
>>A possibility, as single user, is to simply use external libraries 
>>(setting with cmake), but I suppose updating to the latest versions of 
>>these packages would be beneficial for the general audience,
>>
>> 
>>
>>Best regards,
>>
>> 
>>
>>Rashindra Manniesing.
>>
>> 
>>
>> 
>>
>>
>>------------------------------------------------------------------------
>>
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>>Insight-developers mailing list
>>Insight-developers at itk.org
>>http://www.itk.org/mailman/listinfo/insight-developers
> 
> 
>