1. An image processing device, comprising: an evaluation unit which acquires a search pattern which is an appearance pattern of an object in a scene of a video content containing that scene, the appearance pattern representing the number of respective still images included in that scene in which the object appears and the number of respective still images included in that scene in which the object does not appear, the evaluation unit acquires a search target pattern which is an appearance pattern of an object in a video content which is searched for a similar scene, the appearance pattern of the search target pattern representing the number of respective still images included in the scene of the video content which is searched in which the object appears and the number of respective still images included in the scene of the video content which is searched in which the object does not appear, calculates a degree of similarity between the search pattern and the search target pattern, and determines that the scene in the video content which is searched is the similar scene on a basis of the calculated degree of similarity.