Description:

The Graphics Transformation Languages is a set of library for using and
integrating transformation algorithms (such as filter or color conversion)
in graphics applications.

Currently the focus is on developing two languages, designed for two different
implementations:

OpenCTL which is a GPL implementation of the Color Transformation Language,
this language is dedicated to transforming the value of a single pixel
(for instance Brightness adjustement or desaturate). CTL is designed to be
part of the Color Management process.

OpenShiva is inspired by Adobe’s PixelBender language (previously called
Hydra) from the AIF Toolkit. Shiva is a language that apply a kernel-like
transformations on an image, that means it works using more than one pixel.