Edible oil deterioration level determination device, edible oil deterioration level determination system, edible oil deterioration level determination method, edible oil deterioration level determination program, edible oil deterioration level learning device, learned model for use in edible oil deterioration level determination, and edible oil exchange system

Abstract

Provided is an edible oil deterioration level determination device and the like capable of precisely determining the deterioration level of frying oil. A deterioration level determination devicefor determining the deterioration level of frying oil Y comprises an air bubble image extraction sectionfor extracting an air bubble image that is an image of a portion of air bubbles formed due to deep-fry cooking from an oil surface image, a feature parameter calculation sectionfor calculating a feature parameter F characterizing deterioration of the frying oil Y from the air bubble image extracted by the air bubble image extraction section, a deterioration indicator estimation sectionfor estimating a deterioration indicator DI of the frying oil Y based on the feature parameter F, and a deterioration level determination sectionfor determining the deterioration level of the frying oil Y based on the deterioration indicator DI.