New Texture Spectrum Descriptors
Jinwu Xu · Jisuanji gongcheng · 2007
New texture spectrum descriptors are proposed on the basis of texture unit.New texture spectrum descriptors are improved in three aspects: gray scale difference between pixels is divided into four non-overlapping intervals;quantized intervals are automatically determined by texture contrast and quantized values are invariant against linear transformation of gray scale;new texture spectrum descriptors are constructed by 8-neighbor pixels with less relativity in order to reduce dimensionality of texture spectrum.Illumination and rotation invariant texture features based on new spectrum descriptors are also presented.Experiments of texture classification from Outex show that classification rates with these features are higher than those with illumination and rotation invariant texture features based on local binary pattern.