Techniques are described for dynamic automatic exposure compensation
within image capture devices. The techniques include dynamically
adjusting a default target brightness for a scene to compensate an
exposure value (EV) selected by an automatic exposure process. A sensor
array obtains light information from the scene at a default target
brightness and an image capture controller calculates brightness values
of a plurality of regions in the scene based on the light information. An
automatic exposure compensation module dynamically adjusts the default
target brightness based on the brightness values for the plurality of
regions in the scene and threshold values set for the sensor array to set
an adjusted target brightness. The sensor array may then capture an image
frame of the scene using an EV for the adjusted target brightness. The
techniques also include building a hysteresis zone to substantially
stabilize the adjusted target brightness over a sequence of image scenes.