Fig. 2. The experimental machine vision system. (a) General layout of the machine-vision prototype showing the lightening chamber, conveyor belt, camera controller and
the computer; (b) close-up view of the lightening chamber showing the lightening tubes with polarized filters fixed in front of the tubes, (c) potatoes during movement in the
conveyor belt in the full capacity of the system and (d) plan view of the potatoes moving on the bi-conical roller belt.