That part of an optical system where real or virtual images are formed

plural of mirror image

(databases, IBM) A backup copy of a database in a format that may be used, along with incremental logs, to recreate the database after a hardware failure

(computing) A copy of all or part of a disk drive retained for backup or replication purposes.

(computing) The master disk image used in the initialization of VMs, hard disks, etc.

(now chiefly historical) The use of visual or plastic representations of people, spirits etc., for magical purposes.

plural of image histogram

(photography, computer graphics) A histogram that acts as a graphical representation of the tonal distribution in a digital image.

plural of inverse image

The set of points that map to a given point (or set of points) under a specified function.