Method, apparatus and program for image processing, and abnormal shadow detection

摘要

A normal structure element image representing normal structure of at least predetermined one of structure elements of an object images of which are included in an image of the object is artificially generated. A structure-removed image, which is an image obtained by removing the predetermined structure element from the image of the object, is generated by an image operation between the image of the object and the normal structure element image of the predetermined structure element.