1. A computer-readable medium storing computer-executable instructions that when executed by a computer cause the computer to perform a method, the method comprising: determining whether to control a face detection process (FDP) to selectively perform a face detection in a patch in a digital image based, at least in part, on determining whether the patch overlaps a face previously identified by the FDP by more than an overlap factor; and providing a signal to control the FDP to perform the face detection upon determining that a patch overlap does not exceed an overlap factor.