Mif2Go can create graphics files via FrameMaker export filters; see §31.2.5 Converting graphics with FrameMaker export filters for more information.
The graphic file name consists of the FileID (if you have chosen to use FileIDs), followed by the FrameMaker ObjectID of the graphic. You can specify whether to use FileIDs and how many ObjectID digits to include:
; UseGraphicFileID = Yes (default) or No (single-file projects only)
; GraphicNameDigits = 6 (default), range 4 to 8
See §5.3 Identifying files and objects for information about FileIDs and ObjectIDs.