Abstract: Some regions and boundaries can be obtained after image segmentation.Usually, region of interest (ROI) is termed object and others background.The ultimate aim is to make a computer recognize these objects. To do this,description of object is necessary, that is to say,to provide some useful information and interact relationship. Comprehensive analyses of existing image description methods by means of three parts-region interior description, boundary description and relationship description are discussed in this paper.In the end,the future of image description methods is presented.