imageextractfeaturesrawpixelfeatures
combinefeaturespixelfeaturevectors
groupfeaturesimageregions
describeregionsregionfeatures
tigers.6ision.4cheetahszebrasplanes1 blob2 blobshistogramscerp.200.1.2recall.30.1.2recall.30.1.2recall.30.1.2recall.31average recallBlobworld (5D)Blobworld (20D)histograms (5D)histograms (20D)00100200300400500600700number of objects (blobs or images) retrieved from index800tigers.5.4noi.3sicerp.2.10zebras.5.4noi.3sicerp.2.100images retrieved204060cheetahsplanes1 blob2 blobshistograms0images retrieved204060
