A device for the high-speed analysis of photon- or particle-generated image data or for the high-speed energy-discrimination analysis of photon- or particle-counting data. A sensor collects the photons or particles on an array of solid state detectors, as electrical analog signals, and stores the analog-signal information on capacitors of readout arrays associated with the detector arrays. Image-related signals are transferred to integrated circuit chips containing an array of correction processor unit cells. Corrected signals are transferred to an analog image processor. Particle-counting data is transferred directly from the readout array chips to the analog image processor having circuitry for implementing an image processing or energy discrimination algorithm.