  We present a method for spatially resolved multiphoton counting based on an
intensified camera with the retrieval of multimode photon statistics fully
accounting for non-linearities in the detection process. The scheme relies on
one-time quantum tomographic calibration of the detector. Faithful,
high-fidelity reconstruction of single- and two-mode statistics of multiphoton
states is demonstrated for coherent states and their statistical mixtures. The
results consistently exhibit classical values of Mandel and Fano parameters in
contrast to raw statistics of camera photo-events. Detector operation is
reliable for illumination levels up to the average of one photon per an event
area, substantially higher than in previous approaches to characterize quantum
statistical properties of light with spatial resolution.
