The cells in Braille document are arranged in horizontal and
vertical directions. So, the dots in Braille document are also
arranged in horizontal and vertical directions. Due to some
reasons of copying Braille document, there are many Braille
documents where cells (dots) are not arranged in horizontal and
vertical directions (See Figure 2a). That will make the
processing of dots and cells detection more difficult. To solve
this problem, we rotated the Braille image for arranging the
cells (dots) in right directions using the information in
segmented image [1]. In Figure 2b, the original Braille Image
is rotated where all dots are arranged in horizontal and vertical
redirections.