8.2.7 Frame Number

The parameter name shall be “frameNumber" for URI based mode, and “FrameNumber” for the WS mode .

Specifies that the single frame with that number within a multi-frame image object, as defined in PS 3.3, shall be returned. It is OPTIONAL and shall be ignored in the case of all objects other than multi-frame objects.

The value shall be encoded as an integer string (IS), as specified in PS 3.5.