This subroutine should be used to free the resources associated with an image when it has been finished with. This should always be done before the end of a program.

CALL IMG_FREE( PARAM, STATUS )

PARAM = CHARACTER $\ast$ ( $\ast$ ) (Given)

STATUS = INTEGER (Given and Returned)

• This subroutine attempts to execute even if STATUS is set on entry, although no further error report will be made if it subsequently fails under these circumstances.

• It is possible to free more than one image per call using multiple parameter names. Multiple parameter names are specified using a comma separated list of names (i.e. ’IMAGE1,IMAGE2’), or by using "wild-card" characters as part of a parameter name. In this context, a ’$\ast$’ will match any set of characters, while ’%’ will match any single character. Note that only those parameter names previously used to access images via IMG subroutines are considered as potential matches.

• Identifiers obtained using IMG_INDF are not released by this routine.