说明：  Tamura纹理特征提取程序。Tamura纹理特征的六个分量对应于心理学角度上纹理特征的六种属性，分别是粗糙度（coarseness）、对比度（contrast）、方向度（directionality）、 线像度（linelikeness）、规整度（regularity）和粗略度（roughness）。
(Tamura texture feature extraction procedures. Tamura texture features six components corresponding to the six attributes of the texture features on the psychological point of view, are the roughness (coarseness), contrast (contrast), the direction of degrees (directionality), the line like degrees (linelikeness), regularity (regularity ) and rough (roughness).)