I simply use this, quick easy no drama, just simply pull your blade through a few times, shaving sharp yet again.
I agree with Boise. This can work, if you like a plow for an edge. Provided it is used just to touch up it can and will work. So will a strop with diamond emulsion spray and on a much better scale.
For resurrecting a dull blade good luck unless you are using lesser grade steels. I can't imagine the time and effort that it would take on the likes a S90V or such.