Area optimized implementation of unsymmetric trimmed adaptive Median Filter for edge preservation on FPGA

Abstract

To remove the (salt and pepper)impulse noise from images by using the Median Filter. This algorithmic rule is employed for low, medium and high noise densities. Additionally, to preserve edges and sharp image features. The proposed technique is implemented by developing in MATLAB and additionally implemented by using the Xilinx Spartan3 FPGA device. With this planned algorithmic rule less area is needed and thus additional power is saved.