METHOD FOR CLASSIFYING ARTICLES, IN PARTICULAR BUTTONS AND/OR SIMILAR WASHERS, AUTOMATIC SELECTION PROCESS FOR ARTICLES COMPRISING SUCH A METHOD AND MACHINE FOR AUTOMATIC SELECTION OF ARTICLES ACTUATABLE ON THE BASIS OF SUCH A PROCESS

摘要

A method (MC) for classifying buttons (A) comprises an automatic learning phase (B) for the classification of a sample population of buttons (A). The learning (B) comprises: acquiring (AI) an image (I) of each button (A) and defining an area (AR) in each image (I); making a first colorimetric quantification (Ql) of each image (I) and identifying a respective first plurality of colours (CI); determining a first representation (Rl) of each button (A) on the base of the first quantification (Ql); making a second colorimetric quantification (Q2) of a summary representation (Rr) by identifying a second plurality of colours (C2); determining a second representation (R2) of every button (A) on the base of the second quantification (Q2); grouping (C) the buttons (A) on the base of the second representation (R2) to obtain a plurality of models representing (Mr) the sample population of buttons (A).