数字栅格地图的制作

The Making of Digital Raster Graphic

阐述了数字栅格地图制作的技术流程 ,并对技术流程的关键技术问题作了详细的阐述。从方法上解决了扫描过程中因阈值选择不当而出现的断线、粘连现象 ,从原理上介绍了几何纠正。最后从方法上介绍了彩色数字栅格地图的色彩归一化。

This thesis describes the technology process of the digital raster graphic making, states the key problem of the technology process in great detail,gives the method to solve the line loss or adhere because of the inappropriate threshold during the map scanning, explains the principle of geometric rectification,and finally,tells us how to turn the color of color map into the stipulated one.