A colleague of mine, Spencer Alan Jones, recently made a blog post about people in the humanities entering the world of programming. I would encourage all humanists with an interest in digital humanities to give it a read. I think it clarifies in some important ways how the two fields can overlap with respect to cultivated skill sets. Read the full post here.
I just uploaded a full tutorial on clipping images from a iiif image server to non-rectangular bounds. Check it out here.