1. An image analyzing apparatus for extracting a specific object from a moving image, comprising: a feature value recording section that records a plurality of reference feature values different in type from each other; a feature value extracting section that extracts a plurality of feature values different in type from each other, from each of a plurality of moving image constituent images included in a moving image; an object extracting section that extracts an object from the moving image constituent images, based on a degree of matching of the plurality of extracted feature values with respect to the plurality of reference feature values recorded in the feature value recording section; a reference feature value calculating section that calculates, from the plurality of reference feature values recorded in the feature value recording section, a plurality of reference feature values adjusted to the feature values of the extracted object, to a predetermined degree corresponding to the type; and a feature value updating section that updates the plurality of reference feature values recorded in the feature value recording section, with the plurality of reference feature values calculated by the reference feature value calculating section, wherein the feature value extracting section extracts a plurality of feature values from images having different resolutions from each other; the feature value recording section records therein a plurality of reference feature values corresponding to the plurality of feature values extracted from the images having different resolutions from each other; and the reference feature value calculating section calculates a plurality of reference feature values adjusted to the feature values of the extracted object to a degree corresponding to the resolution.