An image analysis based method to evaluate gravure paper quality

摘要

A method has been developed to find the so-called missing dots in a heliotest strip. Heliotest is a test print method which is used to determine the quality of gravure print paper. The method developed is based on image processing and supervised learning, requiring a 386-based MS/DOS computer, a commercial image processing board and software, a commercial co-ordinate table, a CCD camera, and lighting equipment. The method is now at the prototype stage.