用来读取图片的Exif信息，可以同时打开两个图片比较这两个图片之间的差别，并显示出来-Differing Exif properties Exif properties only in left image Exif properties only in right image Identical Exif properties

ExifReader用于读取JPEG文件中的Exif信息。 Exif包括了拍摄照片时的众多信息，例如曝光时间、焦距、快门速度等等。-ExifReader used to read the Exif information in the JPEG files. When Exif includes photos of many information, such as exposure time, focal length, the shutter speed, and so on.

读取照片Exif，比较全，包括gps等信息-Read Photo Exif, including gps and other information