Image sampling structure conversion by morphological filters

An efficient image sampling structure conversion using mathematical morphology is described in this paper. The conversion between quincunx and rectangular structures evidently will play an important role in television image processing and HDTV applications. We propose to use morphological filters in this conversion scheme instead of the conventional linear filters. The advantages of the morphological approach over the linear-filtering approach are its direct geometric interpretation, simplicity, and efficiency in hardware implementation. Some image examples are given to show the effectiveness of this approach.