分布中心值 meaning in English

central value of distribution

In whole image retrieval , established features include a color signature , the mean values and center points of color r . g . b . , an energy - distribution signature by fourier polar transform . the results are returned in hierarchical retrieval steps
对基于全局的图像检索，建立的图像特征包括：颜色描述子，图像rob的三色平均值和分布中心值，以及利用傅氏极坐标变换得到的能量分布描述子。