An FPGA Implementation of a Competitive Hopfield Neural Network for Use in Histogram Equalization

This paper presents a field programmable gate array (FPGA) implementation for a competitive Hopfield neural network (CHNN) to be used in image histogram equalization (HE). This algorithm is so computationally expensive that a viable hardware implementation is appealing provided that an efficient algorithm-to-architecture mapping can be achieved. The Xilinx Virtex-E was used for the hardware realization. An efficient use of the chip is outlined in the results.