for those interested in kuronet  and the competition alex gave a presentation here (en, ) as did tarin (ja, ).
for those interested in classical japanese literature, you can see the tools they've built here . tarin is also very active on twitter .
On a related note, does the first text region not look an awful lot like the Japanese main island of Honshu?
It is indeed doable, calling it obvious is what I react to :-)
But as ever, Japanese ramps up the difficulty because there are thousands of characters instead of 26 letters to deal with.