FPGA-based reconfigurable unit for image filtering in frequency domain

Digital filtering is a key step of image processing in many applications. Due to its importance in this work a general FPGA-based reconfigurable architecture for real-time, online image filtering in the frequency domain is presented. The proposed FPGA-based implementation is portable to distinct platforms from different vendors. Obtained results from different study cases show the high capability and performance of the proposed hardware implementation by applying any user designed filtering operation on an image, and outperforming by two orders of magnitude its software implementation counterpart.