Complex sentence: This is a list of publicly available Content-based image retrieval (CBIR) engines, these image search engines look at the content (pixels) of their images in order to return results that match a particular query.
Split into simpler sentences: This is a list of publicly available Content-based image retrieval (CBIR) engines. These image search engines look at the content (pixels) of images in order to return results that match a particular query.