唔好再喺網上裸跑
2020-2-8 23:07:24
咩係 metadata?
Digital cameras and mobile phones create image file formats such as JPEG. These files contains hidden data or metadata called EXIF (Exchangeable image file format) which can include the date, time and sometimes the GPS coordinates of the picture, the brand and serial number of the device which took it as well as a thumbnail of the original image.