The following example deletes the IMAGESETNAME_1 custom SSO image set.

Situation before delete: 

Before deleting the custom SSO image set, the listssoimages command can be run to show the existing custom SSO image sets.<?xml version="1.0" encoding="ISO-8859-1"?>
<Response stat="200" code="ok">
<Success><Data><Imagesets>
<Imageset>
<Name>IMAGESETNAME_1</Name>
<Installed>Mon Jan 12 17:23:25 2015</Installed>
<Info></Info>
</Imageset>
</Imagesets>
</Data>
</Success>
</Response>
curl -k "https://bal:1fourall@20.200.25.100/access/delssoimage?name=IMAGESETNAME_1"

Situation after delete: 

<?xml version="1.0" encoding="ISO-8859-1"?>
<Response stat="200" code="ok">
<Success><Data><Imagesets>
</Imagesets>
</Data>
</Success>
</Response>