An image processing device includes: an interest area detector that detects interest areas included in a time-series image group captured in time series a calculation processing unit that calculates feature amounts indicative of features of the interest areas an area classification unit that classifies the interest areas into area groups, based on the feature amounts of the interest areas and time-series positions of time-series images including the interest areas a group feature amount calculation unit that calculates a group feature amount indicative of a feature of each of the area groups an area selection unit that selects one or more representative areas of the interest areas belonging to the area groups, from among the area groups and a representative image output unit that outputs one or more representative images including the representative areas in the time-series image group.
