将GPS数据写入没有原始GPS数据的简单图像文件中

Question

-> C＃

我想在图像中写入GPS数据（然后再读取），而其中没有GPS数据！

我知道这个问题在互联网上无处不在，但是他们并没有告诉您如何在包含EMPTY GPS信息的图像中专门进行书写。

如果您希望问我是否编写任何代码或尝试了我的自我，那么说实话，我从5天以来一直在尝试这样做。 可在codeproject.com等网站上在线获取所有EXIF库。我尝试使用property。 我几乎尝试了所有东西，但没有得到。 他们都告诉您更新它，而不是创建它。

Answer 1

exiftool 下载和有关Exiftool的信息

 ExifTool is very flexible in the formats allowed for entering GPS coordinates. Any string containing between 1 and 3 floating point numbers is valid. The numbers represent degrees, (and optionally) minutes and seconds. 

For EXIF GPS coordinates, the reference direction is specified separately 
with the EXIF:GPSLatitudeRef or EXIF:GPSLongitudeRef tag.

For XMP GPS coordinates, the reference direction is specified within the 
XMP:GPSLatitude or XMP:GPSLongitude value, with west longitudes and south 
latitudes being specified either by negative coordinate values or by ending 
the string with "W" or "S". 

Here are some examples of equivalent ways to specify a GPS latitude in both 
EXIF and XMP:

exiftool -exif:gpslatitude="42 30 0.00" -exif:gpslatituderef=S a.jpg
exiftool -exif:gpslatitude="42 deg 30.00 min" -exif:gpslatituderef=S a.jpg
exiftool -exif:gpslatitude=42.5 -exif:gpslatituderef=S a.jpg

exiftool -xmp:gpslatitude="42 30 0.00 S" a.jpg
exiftool -xmp:gpslatitude=42.50S a.jpg
exiftool -xmp:gpslatitude=-42.5 a.jpg

Similar styles may be used for longitude. ExifTool will convert any of these 
coordinate styles to the proper format for the specific tag used. 

When reading, ExifTool reports coordinates in the format

DDD deg MM' SS.SS"

where DDD is degress, MM is minutes, and SS.SS is seconds. The -n option 
may be used to change this to decimal degrees, or any arbitrary format 
may be specified with the -c option. See the application documentation 
for details.