I really enjoy how Julia handles images. The abstractions really streamline developing image processing algorithm that are independent of pixel representation. Like so much of Julia, the first time I saw it, my mind was warped. Julia is worth learning if just for all the clever design choices.
Nice blog. Considered showing to students, although they need a good walk-through (undergrads) on basics of installs and loading etc etc. I'll keep this in mind though for later on.