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FPGA implementation of contrast stretching for image enhancement using system generator

Digital image enhancement methods are used to increase the photographic quality of images. The main objective of any enhancement method is obtaining a more suitable result compared with the original form. Any image enhancement techniques can be categorized into two methods: spatial domain methods and frequency domain methods. This project concentrates on image enhancement in the spatial domain, with particular reference to point processing methods like: contrast manipulation, brightness manipulation, inverting images, threshold operation. This project presents concept of hardware software co-simulation for image processing using Xilinx System Generator (XSG). This technique, provides a set of Simulink blocks (models) for several hardware operations that could be implemented on various Xilinx FPGA.