Set the Sweeper (clock 2 above) to one minute before your LWT. 8:14am in this example.

设置清扫车（闹钟2）：比LWT提前一分钟，即上午8:14。

A new texture feature extraction method using Local Walsh Transform (LWT) is presented. The definition of LWT is given. The statistical properties of LWT coefficients are analyzed.

介绍了一种利用局部沃尔什变换(LWT)提取图像纹理特征的新方法，给出lwt的定义，并分析了LWT系数的统计特性及其各阶矩的纹理鉴别性能。