[Insight-users] fast assign ITK image to an array?

[Francis Girard]

Hi,

Can we iterate safely using this raw buffer pointer?

Maybe there is some padding to ensure some byte alignment property?

Also if there is a GetBufferPointer notice that there is no
SetBufferPointer. So I don't think you can just set some buffer pointer as
is the case with some C++ STL containers. With that API, you will at least
need to make a copy of the contents, and even then we must make sure that
there is enough allocated memory.

After all, what would be the usefulness of the "ImportImageFilter" if we
could simply and safely set a raw buffer pointer?

And finally what precisely the  "ImportImageFilter" does under the hood?
Apprently it does _NOT_ make a copy of your buffer pointer. So maybe that is
fast. But I am not sure of what I am saying.

Thanks

Francis




2011/4/17 Neil Panjwani <paniwani at gmail.com>

> You can access the image in 1D C++ array form using the GetBuferPointer()
> function.
>
> - Neil
>
>
> On Sat, Apr 16, 2011 at 8:53 PM, Dongfeng Han <handongfeng at gmail.com>wrote:
>
>> Hello everyone,
>> Anyone know how to fast assign ITK image data to an c++ array?
>> The common approach is to use the iterator of  the ITK image and assign
>> the c++ array.
>> Any other fast way?
>> Best
>> df
>>
>>
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> http://www.kitware.com/products/protraining.html
>
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