András Hajdu received his MSc degree in Mathematics from the Lajos Kossuth University, Hungary, in 1996. He obtained his PhD degree in Mathematics and Computer Science from the University of Debrecen, Hungary, in 2003. He worked as a PostDoc researcher for the Artificial Intelligence Information Analysis Laboratory, Dept. of Informatics, Aristotle University of Thessaloniki in 2005-2006. From 2001 he served as Assistant Lecturer, since 2003 as Assistant Professor, and since 2008 as an Associate Professor at the University of Debrecen. From 2011, he is the head of the Department of Computer Graphics and Image Processing at the Faculty of Informatics, University of Debrecen. He is a senior member of the IEEE, member of the Janos Bolyai Mathematical Society, John von Neumann Computer Society (Hungary), Public Body of the Hungarian Academy of Sciences, and from 2015 the president of the Hungarian Association for Image Analysis and Pattern Recognition. He has authored or co-authored 37 journal papers and 103 conference papers. His main interest lies in digital image processing and discrete mathematics.