METHOD AND DEVICE FOR QUANTIFYING A WEAR LEVEL OF A BRISTLE FIELD OF A BRUSH

A method and device for quantifying a wear level of a bristle field of a brush are disclosed comprising a plurality of bristle tufts grouping each a plurality of single bristles, said bristle tufts being distributed over the bristle field, the method comprising the following steps: - recording and storing an image of the bristle field; - converting the image into a gray scale image by use of digital image processing and storing the gray scale image; - converting the gray scale image to at least one binarized image with only two tone values by use of digital image processing, thereby assigning one tone value to bristles and/or bristle tufts visible in the image and the other tone value to the background in the image not showing bristles or bristle tufts, and storing the binarized image; - applying at least one evaluation methods; - comparing the results of the at least one applied evaluation method with reference data of an unused brush and/or of used brushes with determined wear levels to classify the wear level of the bristle field.