Advanced Binarization Method for Music Score Recognition Using Local Thresholds

Application technology of mobile phone has been developing for the delivery of various contents over a simple voice channel. Music score recognition is one of such application services provided by mobile phone manufacturers which transform a music score taken by the phone camera into a midi file. For the successful recognition of the music score, the input image should be properly binarized to be fed into the recognition process. In this paper, Adaptive binary algorithm is proposed which exploits local thresholds with several levels to deal with illumination changes over the entire image. Experimental results shown advanced performance of music score recognition.