Only released in EOL distros:
Package Summary
 Documented 
Helper functions for use with OpenCV.
- Author: Hai Nguyen, Advait Jain (Healthcare Robotics Lab, Georgia Tech)
 - License: New BSD
 - Source: git https://code.google.com/p/gt-ros-pkg.hrl/ (branch: master)
 
Contents
This package provides a home for a useful set of miscellaneous Python modules each too small to warrant having their own package.
Modules
- util.py A variety of utility functions for coding in Python.
 - rutils.py Utility classes for working with rospy.
 - transforms.py Basic functions for creating/decomposing homogeneous transformation matrices.