Fundamental properties of 2-D digital systems. Frequency representation of 2-D systems and the 2- D sampling theorem. The 2-D z- transform and stability of 2-D systems. Design techniques of 2-D FIR digital filters: The window method, the 2-D frequency sampling technique, optimal minimal design, frequency transformations from 1-D to 2-D filters. Design techniques of 2-D digital filters. Quantization effects and noise in digital filters. Application of digital signal processing to areas such as image processing, processing of sonar maps and biomedical images of maps.