Module Exif.IFD

type t =
  1. | IFD_0
    (*

    Info of the main image

    *)
  2. | IFD_1
    (*

    Info of the thumbnail

    *)
  3. | EXIF
    (*

    camera info

    *)
  4. | GPS
    (*

    location

    *)
  5. | Interop
    (*

    exif format interoperability info

    *)