[ITK] SimpleITK in R: Best way to read image

[Ryan Edward Young]

Hello,

A am trying to read several nifti files into R as follows.

for(i in 1:n){
     im=ReadImage(image.nii.gz)
     imArray=as.array(im)
     #compare image with other images, and add the similar part to an array
}

When I do this the memory usage just keeps growing.  It appears that
simpleITK is not doing any garbage collection when I open a new image into
my im variable.  Is there a command to close itk connection to a image or
clear that part of the buffer?  Any advice is appreciated.

Thanks
Ryan
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