Interpolation is one of the widely used in many applications Image processing such as scaling, re-sampling and re-targeting. The Interpolation which estimates unknown target pixel value from surrounding neighborhood known pixels, the quality of Interpolation algorithm depends on number of pixels used in estimation. An image consists of edge and smooth pixels. Hence To exploiting content of the ...

A threshold scheme, which is introduced by Shamir in 1979, is very famous as a secret sharing scheme. Dealer distribute shares of a secret value among n participants. Gathering t(≤ n) participants, a secret value can be reconstructed. This is called a (t, n) secret sharing scheme. This scheme is based on Lagrange’s interpolation formula. As regard interpolation formula, it is known not only Lag...

The requirements for interpolation of scattered data are high accuracy and high efficiency. In this paper, a piecewise bivariate Hermite interpolant satisfying these requirements is proposed. We firstly construct a triangulation mesh using the given scattered point set. Based on this mesh, the computational point (x, y) is divided into two types: interior point and exterior point. The value of ...