[Insight-users] Memory limits of ITKImage object

[Luis Ibanez]

Hi Ricardo,

The image object size is only limited by the amount of
RAM memory in your machine, and the size of the
"unsigned long" in your operating system+compilation
mode.

This translates to:

1) In a Windows 64 bits machine : Max = 2Gb
    (because unsigned long is smaller
     than size_t in Windows)

2) In a Linux 64 bits machine: Max = your RAM
    (given that it is likely smaller than 2^64 bytes)


The ITK streaming mechanism should help you
to process a very large image *as long as* you
are using filters that are streamable.

Examples of filters that are not streamable are

* FFT
* Region Growing
* Watersheds


You may want to look at:

* ITK/Examples/IO/VisibleHumanStreamReadWrite.cxx

and

ITK/Testing/Code/IO/
itkGDCMSeriesStreamReadImageWrite.cxx
itkImageFileReaderStreamingTest2.cxx
itkImageFileReaderStreamingTest.cxx
itkImageFileWriterStreamingPastingCompressingTest1.cxx
itkImageFileWriterStreamingTest1.cxx
itkImageFileWriterStreamingTest2.cxx
itkMetaImageStreamingIOTest.cxx
itkMetaImageStreamingWriterIOTest.cxx


   Please let us know if you have any questions,


        Thanks


             Luis


----------------------------------------------------------------
On Mon, Oct 25, 2010 at 8:21 AM, Ricardo Uribe Lobello <
ricardouribelobello at gmail.com> wrote:

>
> Good day everyone,
>
> Does anyone know about the memory limits of an ITKImage object? How big can
> be an ITK Image object?
> Can the Itk streaming mechanism help me to process a very big image? Could
> you point me to a web page with good documentation about it?
>
> Thanks in advance,
> Ricardo
>
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