OpenCL - pass an image3d_t to kernel?

Hi,

I’m trying to use Mathematica 10.4.1 to prototype some openCL kernels. If I load an image from a series of DICOM files, how do I pass that into the kernel?

for instance here is a kernel with image being passed in.

__kernel void imageKernel(_read _only image3d_t volume) {

etc
}