A color correlogram (110) is a representation expressing the spatial correlation of color and distance between pixels in a stored image. The color correlogram may be used to distinguish objects in an image as well as between images in a plurality of images. By intersecting a color correlogram of an image object (115) with correlograms of images to be searched (100), those images which contain the objects are identified by the intersection correlogram (125).
IMAGE SUBREGION QUERYING USING COLOR CORRELOGRAMS