A Study of Shape-Based Image Retrieval

Content-based image retrieval work includes feature selection,object representation,and matching.There are color,texture,shape and spatial relationship.Among these features,the shape can bring people attractive visual information.We take the method of Prompt Edge Detection(PED)as edge point detection,which is compared with the Sobel edge detection method.In the processing of object representation,we use the mountain-climbing sequence(MSC),which is invariant to translation,rotation,and scale.The MSC is a good method for object presentation.