> I'm also curious if anyone tried to explain them with reproducible steps that could be used for crafting such images on purpose? http://www.ritsumei.ac.jp/~a

> I'm also curious if anyone tried to explain them with reproducible steps that could be used for crafting such images on purpose? http://www.ritsumei.ac.jp/~akitaoka/index-e.html http://www.ritsumei.ac.jp/~akitaoka/index-e.html Mr Kitaoka is quite a nice guy and will answer questions if you ask him on Facebook (his English is quite good)