[Insight-users] Excluding background pixels in Image to List Adaptor

[Mark Bouts]

Hi,

Is there a way of not including the background pixels in the conversion 
from Image to List types. I'm currently using a kD-tree for storing my 
vector points after I have retrieved them from multiple images. When 
processing this tree it takes considerable time since the background 
pixels are also processed for which there is no need. Is there a way of 
making use of a mask or something similar when converting to the list?

Thanks!

Mark