Gets the GPSAltitudeRef EXIF tag.
Description: Indicates the altitude used as the reference altitude. If the reference is sea level and the altitude is above sea level, 0 is given. If the altitude is below sea level, a value of 1 is given and the altitude is indicated as an absolute value in the GSPAltitude tag. The reference unit is meters. Note that this tag is BYTE type, unlike other reference tags.
Id: 5 (0x0005)
Type: Byte
public static ExifTag GPSAltitudeRef { get; }
Public Shared ReadOnly Property GPSAltitudeRef As ExifTag
Get