“…The discrete orthogonal moments (DOMs) are widely applied in various fields of signal and image analysis. Applications of DOMs include signal and image reconstruction [8,9,50], image classification [3,16,20,39], face recognition [33], image watermarking [24,41,44], signal zero-watermarking [10], edge detection [35], image encryption [43], signal compression [11,2] and image compression [13,42]. The computation of DOMs involves the computation of kernel discrete orthogonal polynomials (DOPs) such as Tchebichef [27,28], Krawtchouk [45,47], Hahn [46,50], Meixner [12,21], Charlier [8,19,34], dual Hahn [20,48], Racah [49] and Shmaliy [26] polynomials.…”