We define two functions f and g on the unit interval [0, 1] to be strongly conjugate $\operatorname {iff}$ there is an order-preserving homeomorphism h of [0, 1] such that g = h -1 fh (a minor ...

Our aim is to approximate the nonlinear function by a piecewise linear function as follows: (1) where is th subset in partitioning of as. As we know, this partitioning has bel- low properties: 1) 2) ...

As digital cameras have become popular in recent years, image enhancement for dark pictures is widely applied in post-processing. We propose a method to not only enhance the contrast entirely with ...

The canonical representation of piecewise-linear (PWL) functions provides a global compact formulation of continuous PWL functions, which has significant advantages in the research and applications ...