how to segment music notes in a staffline?

I would like to segment the notes and rest inside a staffline before feeding the segmented images to a image classifier to classify what kind of note it is. I already know how to remove the staff lines of the image but the segmentation part is tricky to me.

here is a sample image that i would like to segment.

Answer 1

[Image Analyst]

Algorithms are published here: 23.2.7.4 Analysis of Music, Musical Notation, Music Scores