Improved coarseness-based image retrieval
Xinghua Sun, Jingyu Yang, Guo Li · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2001
Coarseness is the most fundamental textural feature and has been much investigated since early studies. This paper improves the previous coarseness algorithm on the selection of neighborhood sizes and the calculation of neighborhood average differences, and the improved coarseness algorithm is presented. Experiments show that the improved coarseness has higher texture discriminability and better rotation invariance, and that the image retrieval result based on the improved coarseness is superior to that based on the previous coarseness.