Verfahren und Vorrichtung zum Analysieren von Bildpunkten in einem Feld

摘要

Methods and apparatus employing fixed raster scanning for classifying steels according to the non-metallic inclusion content apparent in a polished surface of a sample thereof. The method allows for individual regions of the surface to be analysed and classified and an overall classification to be made in accordance with the predominant classification of a number of regions making-up the surface.