IPython (Jupyter) widgets: An image convolution demo

I've been meaning to write up a post on an IPython widget I created for the scikit-image tutorial at SciPy 2014. I had hoped to do it before EuroSciPy, but, alas, that was not meant to be. (BTW, it looks like the EuroSciPy sprint was *really* productive.) In any case, I finally followed through on it: http://tonysyu.github.io/ipython-jupyter-widgets-an-image-convolution-demo.h... I hope it'll be useful to some of you! -Tony