RESEARCH AND IMPLEMENTATION OF IMAGE DATA COORDINATE
TRANSFORMATION
1)School of Geodesy and Geomatics, Wuhan University, Wuhan 430079
2)Research Center of GNSS, Wuhan University, Wuhan 430079
3)Changsha Planning & Design Survey Research Institute, Changsha 410007
4)School of Geodesy and Geomatics, Tongji University, Shanghai 200092
Abstract:In order to unify existed foundation geographical information data under the new datum,we designed the coordinate transformation flow between vector data and raster data, and developed a software to achieve highprecision coordinate conversion for shp format and tif format images on the base basis of GDAL. Experiments show that the results transformation image data are consistent with the accurate known data, which can be concluded that the methods are correct and useful.