  We experimentally test a recently proposed holographic method for imaging
coherent light scatterers which are distributed over a 2-dimensional grid. In
our setup the scatterers consist of a back-illuminated, opaque mask with
submicron-sized holes. We study how the imaging fidelity depends on various
parameters of the set-up. We observe that a few hundred scattered photons per
hole already suffice to obtain a fidelity of 96% to correctly determine whether
a hole is located at a given grid point. The holographic method demonstrated
here has a high potential for applications with ultracold atoms in optical
lattices.
