然后，对预处理后的图像运用此算法实现了地质等值线图的边缘探测，并得到矢量图形数据，从而解决了地质等值线图件数字化问题。

Then, by applying this algorithm to the picture after pretreatment, we realize its edge-detection and get vector graphical data. As a result, we solve digital problem of geological contour-map.

youdao

然后，对预处理后的图像运用此算法实现了地质等值线图的边缘探测，并得到矢量图形数据，从而解决了地质等值线图件数字化问题。

Then, by applying this algorithm to the picture after pretreatment, we realize its edge-detection and get vector graphical data. As a result, we solve digital problem of geological contour-map.

youdao