tools line

• 画线工具

tools line的用法和样例：

例句

1. By setting a one-dimensional line tool across the image and calculating the grayscale difference across this line, a series of points will be generated throughout the frames.
   通过设置横宽图像一维线工具并计算横跨线的灰阶差异，可以在所有的帧中生成一系列的点。