Caliph & Emir are MPEG-7 based Java prototypes for digital photo and image annotation and retrieval supporting graph like annotation for semantic metadata and content based image retrieval using MPEG-7 descriptors.
Divertido buscador de fotos nos álbuns do FLICK, usando uma curiosa e lúdica interface: você rabisca as cores e o localizador traz as fotos que se encaixem!
Retrievr is an experimental service which lets you search and explore in a selection of Flickr images by drawing a rough sketch. Currently the index contains many of Flickr's most interesting images. If you'd like to have your images (or the images for a
B. Henne, M. Koch, and M. Smith. 18th International Conference on Financial Cryptography and Data Security (FC 2014), volume 8437 of LNCS, Springer, (2014)