Improved Texture Retrieval Based on Nonsubsampled Contourlet

This paper presents an improved algorithm of image texture retrieval based on nonsubsampled contourlet transform and grey co-occurrence matrix of image. The new improved algorithm not only depends on coefficients of sub bands by nonsubsampled contourlet transform, but also depends on angular second moment, moment inertia, inverse difference moment, correlation of grey co-occurrence matrix of image. Experimental results demonstrate that the proposed algorithm performs much better than the previous methods. It achieves higher recall precision.