A CMOS VLSI IC for real-time opto-electronic two-dimensional histogram generation

Histogram generation, a standard image processing operation, is a record of the intensity distribution in the image. A prototype of an optical-electronic histogram generator has been designed and tested for 1D objects using wirewrapped MSI TTL components (Richstein et al. 1993). The overall system design is such that the electronic signal obtained from the optically scanned two-dimensional semi-opaque image is processed and displayed within a period of one cycle of the scanning process. The authors report a VLSI design to be used in a two-dimensional real-time histogram generation scheme.<
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