It has to be a joke...
... that someone actually lost time trying to make this thing work:
Album Cover-Based Genre Classification
Automatic genre classification is a popular problem in the machine listening community. The ability to classify a song or album into a broad category without human interaction has numerous applications for the recording and music retail industries. Until now, most work on this problem has focused on extracting relevant features from audio data, or occasionally other metadata (musical notation, user playlists, etc.) which is frequently hand-labeled. This project attempts to make use of an additional source of data: the cover artwork associated with albums.
Comments
How can you call this a joke? It's a prefectly good job or hobby for a geek =)