Gray level image compression using a set of separable 2D discrete orthogonal moments based on Racah polynomials

This paper details a comparative study in terms of compression capability, between our separable two-dimensional discrete orthogonal moments and the classical existing methods such as classical discrete orthogonal moments and DCT. In the current study, we aim to investigate the properties and the capabilities of the separable discrete moments in the image compression fields. The experimental results and analysis on several test images, show that separable discrete orthogonal moments can provide better image representation and favorable image compression performance than the traditional moments.