Image resizing is a basic tool in image processing, and literature, we have many methods based on different approaches, which are often specialized only upscaling or downscaling. In this paper, independently of the (reduced enlarged) size aim to get, approach problem at continuous scale where underlying function representing globally approximated by its Lagrange–Chebyshev I kind interpolation p...

Properties of the hybrid of block-pulse functions and Lagrange polynomials based on the Legendre-Gauss-type points are investigated and utilized to define the composite interpolation operator as an extension of the well-known Legendre interpolation operator. The uniqueness and interpolating properties are discussed and the corresponding differentiation matrix is also introduced. The appl...