A11 - Playing Notes by Image Processing

The image below is the score of twinkle Twinkle Little Star.


Using correlation of an image of a quarter note and the score, we can get an image where the quarter notes light up.


Using a threshold wherein only the values between 0.9-1 light up, we get the locations of the quarter notes only, without the half notes or the G-clef or the staff.


Using the same method with an image of a half note instead, the desired results are not obtained because the quarter notes light up strongly, even more so than the actual half notes themselves. I attribute this to the similarity of the shapes of these two notes.


For this activity, I give myself a grade of 5 for not being able to differentiate the half notes and progress to the other stages of the activity.