Sewing machine and computer readable medium storing sewing needle status evaluation program

摘要

A sewing machine provided with a needle bar having a sewing needle interchangeably attached to its lower end including an imaging element that captures images of the sewing needle; an extractor that extracts a shape of the sewing needle from the images of the sewing needle captured by the imaging element; an abnormality determiner that determines presence/absence of abnormalities in measurements of the sewing needle based on the shape of the sewing needle extracted by the extractor; and an abnormality alerter that alerts the presence of abnormalities determined by the determiner.