In Shapiro et al.[49], the global orientation (skew angle) of a handwritten page is first
searched by applying a Hough transform on the entire image. Once this skew angle is
obtained, projections are achieved along this angle. The number of maxima of the profile give
the number of lines. Low maxima are discarded on their value, which is compared to the
highest maxima. Lines are delimited by strips, searching for the minima of projection profiles
around each maxima. This technique has been testedon a set of 200 pages within a word
segmentation task.