EXTRACTION OF SKELETON PRIMITIVES ON WAVELETS
U. S. N. Raju, A. Srikrishna, V. Vijaya Kumar, A. Suresh · 2008
A method for dominant skeleton extraction of textures using different wavelet transforms is proposed in this paper. In the present paper 3×3 masks are used for extraction of skeleton primitives. For a 3×3 skeleton primitive there will be 2 9 skeleton primitive combinations. But the present paper considered a skeleton primitive for the skeletonization purpose if and only if its center pixel is one. By this, there will be 2 8 combinations of skeleton primitives. These skeleton primitive are used for evaluating skeleton points. The skeleton of an object has the property that it is reduced to one point when the skeleton primitive used for the skeletonization is exactly homothetic to the object. The dominant skeleton subset is evaluated by counting the skeleton points. The skeleton subset that leads to the least skeleton points will be the resultant skeleton subset. The present paper classified the textures based on two methods. In the first method textures are classified based on skeleton primitive weight, which is nothing but based on skeleton primitive combination. In the second method classification is made based on distance function of skeleton points. These two methods are applied on Brodatz textures with different wavelet transforms which resulted a good classification of textures.