Medical image retrieval using metric histogram
Cong-Hua Xie · Jisuanji gongcheng yu sheji · 2005
The gray distribution of image was discussed.A metric histogram for content-based image retrieval and a new metric distance function MHD() were presented by taking advantage of the correlation among adjacent bins of histograms.The new method reduced the dimension number of feature vectors obtained from conventional histogram and overcame the flaws of spatial access method(SAM).A database of CT image was retrieved by the method and results show that it has good performance.