This paper presents a scheme of image retrieval from a database using queri
es prompted by the colour and the shape of the objects present in different
scenes. Of the whole scheme of image retrieval, we will focus attention on
the modules that allow feature extraction of the component objects from th
e scenes and the matching of the objects among the different images. The de
fined scheme enables the indexing of images by measuring the similarity bet
ween the integral objects. (C) 2001 Elsevier Science B.V. All rights reserv
ed.