Steve,
Gift. I came up with an algorithm that I've been using on my own material that I thought prudent to share, since I know your interest in creating contrast and clarity. It uses a variation of local histrogram equalization.
http://forum.image-line.com/viewtopic.php?f=100&t=176152#p1239161
However the algorithm can be dramatically improved using a stochastic sampling method as I implemented here.
https://www.filterforge.com/filters/13949.html
The algorithm dramatically increases fidelity contrast like I've never heard anywhere… you'll like it.
It's yours.
Walter