Software for quality evaluation of a PS plate edge

Pre-sensitized (PS) plates are specially treated and coated aluminium sheets, widely used for offset printing. PS plates used in the Computer to Plate technology require strict quality control of the plate’s edges, disturbed during various finishing processes like cutting on guillotines or slitting. For this purpose a special tests stand had been built by the Silesian University of Technology, in cooperation with one of the largest PS plates manufacturer in the world - FUJIFILM. The paper describes the software, written for the purpose of evaluation of various defects caused during finishing processes.