[ITK-users] SetImportPointer(T *, letContainerManageMemory)

[Jim Miller]

Setting LetContainerManageMemory is passing control over to ITK to manage the lifetime of that memory. You do not need to (and should not) call delete of the buffer you passed in. 

ExtractImageFilter will create a new image and a new buffer to hold the pixels of the extracted data. The lifetime of the original image will be managed by the SmartPointer. 

 

Jim

> On Mar 28, 2014, at 3:43 PM, Emma Ryan <eryanvtk at yahoo.com> wrote:
> 
> Hi,
> 
>   If I declare a variable such as 
> 
> float *img = new float[500];
> 
> and pass 'img' to the import filter with the LetContainerManageMemory = true, then do I still need to
> 
> call delete [] img ?    Or will the filter take care of this ?. The documentation seems to imply that delete [] img will be called by ITK internally.  Just want to confirm this.
> 
> Also, does the ExtractImageFilter create a new buffer for the extracted portion ? If so, do I need to clean up memory ?  Or will ITK smart pointers handle it ?
> 
> thanks,
> Emma
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