LBP（Local Binary Pattern，局部二值模式）是一种用来描述图像局部纹理特征的算子；它具有旋转不变性和灰度不变性等显著的优点。它是首先由T. Ojala, M.Pietikä inen, 和 D. Harwood 在1994年提出，用于纹理特征提取。而且，提取的特征是图像的局部的纹理特征；-LBP (Local Binary Pattern, local binary pattern) is an image used to describe the local texture features of operator　it has significant advantages rotation invariance and gray invariance. It was first proposed in 1994 by the T. Ojala, M.Pietikinen, and D. Harwood, for texture feature extraction. Moreover, the extracted features are local texture features of the image