Automated Measurement of Uniform Pink Areas in Bricks Employing Morphological Operators

After a previous investigation into the feasibility of using image processing in the quality control system at a brickworks, it was concluded that the methods used could be developed into a commercial real-time quality control system, which could result in considerable cost savings. Among the measurements automated were methods that allowed the approximate measurement of the area of uniform pink colour on the surface of the particular brick type considered. However, even though the measurement was reported to be "quite good considering the complexity of the problem", it has been found that it could be enhanced and simplified by employing morphological operators.It is concluded that the method shows itself to be very robust to variation of pink coloration in the bricks and allows accurate colour segmentation of the bricks.