SimilarImages is a utility program to analyze and search large media collections (images/videos) for near duplicates, meaning media showing the same thing but e.g. in different file formats, compression levels, sizes. SimilarImages first analyzes a file, generating a color/location footprint of a normalized thumbnail image of a file, and then compares these footprints. Analyzation results will be cached and stored on disk, so that subsequent runs become faster.