Method for fusing digital line drawing and image drawing

The invention discloses a digital line drawing and image fusion method, which belongs to the technical field of data fusion, and comprises the following steps of: 1, data preparation: digital line preparation: ensuring the accuracy of a digital line file, and previewing and editing in corresponding software so as to prepare for subsequent fusion operation; image map data preparation: obtaining a required satellite image or aerial image, and performing preprocessing, such as cutting and color balance adjustment, according to needs; 2, proper software tools are selected, specifically, special GIS software, such as ArcGIS, GlobalMapper or LSV, is used, and the software generally provides powerful data import, processing and fusion functions; and 3, importing and superposing: importing digital line data: importing a digital line file into the selected software to ensure that a coordinate system and projection information of the data are correct. According to the method for fusing the digital line drawing and the