An area-efficient alternative to adaptive median filtering in FPGAs

This paper presents a new approach to the FPGA implementation of image filters which are utilized to remove the saltand-pepper noise of high intensity (up to 70% of corrupted pixels). The proposed solution combines image filters designed by means of evolutionary algorithm with a simple human-designed preprocessing and post-processing unit. It provides the same filtering capability as a standard adaptive median filter; however, using four times less Virtex slices.

• Type: Conference
• Year: 2007
• Where: FPL
• Authors: Zdenek Vasícek, Lukás Sekanina
• Keywords: FPL 2007, Hardware, Image filters, Simple Human-designed Preprocessing, Solution Combines Image