An Image Retrieval Algorithm Based on EHD of MPEG-7
Kang Qin · Journal of Southwest University · 2008
In this paper, we propose an effective image retrieval algorithm based on the edge histogram descriptor (EHD) of MPEG-7. This content descriptor is constructed by an edge-block histogram with four patterns of horizontal edge, vertical edge, non-directional edge and no-edge. Extensive experiments support that the proposed content descriptor is effective in representing and describing image content. In comparison with comparable existing techniques, the proposed algorithm achieves superior performances in terms of retrieval precision and recall rate.