Color Transformation Language for Digital Motion Picture Pipelines
To download the CTL Software Developer Kit and required libraries, please follow these links:
The C++ source code for the reference implementation of the CTL interpreter can be downloaded from:
http://sourceforge.net/projects/ampasctl
The CTL interpreter depends on a set of low-level utility libraries, called IlmBase, which can be downloaded from:
http://savannah.nongnu.org/projects/openexr