1. An image matching method performed by an image matching device, comprising: acquiring a model image; generating a plurality of variation images by applying to the model image variations that are different from each other; extracting features from each of the plurality of variation images; generating a model template based on the features; and performing template matching using an image to be matched and the model template, wherein the extracting the features comprises segmenting the variation image into a plurality of regions and extracting the feature of each region, and wherein the generating the model template comprises generating the model template using the features of the regions where a kurtosis of a feature distribution is higher than or equal to a predetermined threshold.