[Insight-users] efficient image reset

[asamwm]

Hi,
I want to reset an image multiple times in a loop
(a binary image, with only a small fraction of pixels set to 1 in each
iteration).

So assuming the contents in the previous iteration are to be discarded,
which is the best way to go about  resetting the image?
I could find FillBuffer(0), but that would probably iterate
through the entire 3D stack..
If I use initalize() , do I still need to SetRegions() and allocate() ? is
this faster?

Or should I reset the pixels that were set in the previous iteration
manually?

Thanks.
Hussein
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