Figure 15

Example of the usage of the row histogram of the white pixels to detect errors in the computation of the staff position. In (a), the staff is correctly extracted and the first and the last row histogram values are equal to the maximum. In (b), the staff is badly cut and the value of the histogram of the last row is smaller than the maximum value.Row histogram of the white pixels for a correctly extracted staffRow histograms of the white pixels for an incorrectly extracted staff