The LIRE (Lucene Image REtrieval) library provides a simple way to create a Lucene index of image features for content-based image retrieval (CBIR), which allows searching for similar images.
A major change in this version is the support of Lucene 3.0.1, which has a changed API and better performance on some operating systems. A critical bug was fixed in the Tamura feature implementation. It now definitely performs better. Hidden in the depths of the code, there is an implementation of the approximate fast indexing approach of G. Amato. It copes with the problem of linear search and provides a method for fast approximate retrieval for huge repositories (millions?).