Showing thresholded and unthresholded maps using outlines and transparency

[KirstieJane]

This wonderful visualisation from the Medical Image Analysis Lab shows both magnitude of an effect and the outcome of the statistical test (in this case a t-test) using hue and transparency coding.

The code is shared and available for download here and there is an accompanying paper:
Data Visualization in the Neurosciences: Overcoming the Curse of Dimensionality,
Elena A. Allen, Erik B. Erhardt, and Vince D. Calhoun, Neuron 74 (2012)
doi:10.1016/j.neuron.2012.05.001

An example of a fMRI statistical map showing magnitude and statistical test outcome using hue and transparency coding:

[KirstieJane]

Changed the name of this issue based on @chrisfilo's issue title (the now closed #11).

[lrq3000]

There is a python version here: https://github.com/spinicist/nanslice

And I also made a script that is similar, because I did not know of the existence of the dual coded images before, see #32