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I found the following paper solving the problem you described http://www.ece.rutgers.edu/~kdana/Capstone2012/Reports/CDG3.pdf 1-first detect the lines , by using horizontal projection , and decide where is the peaks larger than 1/2 image width , this will be line in music sheet 2-find the points located in the detected lines then clear the vertical pixles located inside the line under the codition number of cleard pixles not larger than line font width see page 34 ,35 in the page , the full source code is exist

I found the following paper solving the problem you described http://www.ece.rutgers.edu/~kdana/Capstone2012/Reports/CDG3.pdf 1-first detect the lines , by using horizontal projection , and decide where is the peaks larger than 1/2 image width , this will be line in music sheet 2-find the points located in the detected lines then clear the vertical pixles located inside the line under the codition number of cleard pixles not larger than line font width see page 34 ,35 in the page , the full source code is exist

I found the following paper solving the problem you described http://www.ece.rutgers.edu/~kdana/Capstone2012/Reports/CDG3.pdf 1-first http://www.ece.rutgers.edu/~kdana/Capstone2012/Reports/CDG3.pdf

1. first detect the lines , by using horizontal projection , and decide where is the peaks larger than 1/2 image width , this will be line in music sheet 2-find sheet.

2. find the points located in the detected lines then clear the vertical pixles located inside the line under the codition number of cleard pixles not larger than line font width width

see page 34 ,35 in the page , the full source code is exist