✦ 标签
#gps metadata
第 01 篇
什么是地理标记？带位置信息照片背后的标签
Geotagging is the act of storing a location inside a photo file itself. Here is exactly which EXIF tags hold it, and what happens to them when you upload.
第 02 篇
如何从照片文件中提取 GPS 位置
The coordinates are already inside the file. Here is how to read them out, why the number arrives without its minus sign, and which tags tell you whether the location is a measurement or a guess.