* Note: a classical image can be considered as the degenerated case
* of a multiframe image. In this case the collection is limited
* to a single individual frame.
* The informations on each frame are obtained during the parsing
* Note: a classical image can be considered as the degenerated case
* of a multiframe image. In this case the collection is limited
* to a single individual frame.
* The informations on each frame are obtained during the parsing