An imaging device, comprising: a sensor configured to provide an image of an object, the sensor having a sensor exposure time and a sensor gain and the image including a plurality of frames, each of the plurality of frames depicting at least a portion of the object; a motion detector to determine whether there is movement of the at least a portion of the object between adjacent frames of the plurality of frames; a controller configured to set the sensor exposure time to a first value in response to a determination by the motion detector that there is movement of the at least a portion of the object between adjacent frames, and to set the sensor exposure time to a second value that is substantially different than the first value in response to a determination that there is no movement of the at least a portion of the object between adjacent frames; the controller further being configured to adjust at least one of the sensor exposure time and the sensor gain to substantially maintain a luminance value of the plurality of frames at a target luminance value irrespective of whether the motion detector determines that there is movement of the at least a portion of the object between adjacent frames or not; wherein the target luminance value is one of a first target color luminance value and a first target black and white luminance value, the device further comprising: a color detector to determine whether the image is a color image or a black and white image; wherein the controller is configured to adjust at least one of the sensor exposure time and the sensor gain to substantially maintain the luminance value of the plurality of frames at different first or second target luminance values dependent upon whether the image is determined to be the color image or the black and white image, the target luminance value being greater for the color image than the black and white image. a sensor configured to provide an image of an object, the sensor having a sensor exposure time and a sensor gain and the image including a plurality of frames, each of the plurality of frames depicting at least a portion of the object; a motion detector to determine whether there is movement of the at least a portion of the object between adjacent frames of the plurality of frames; a controller configured to set the sensor exposure time to a first value in response to a determination by the motion detector that there is movement of the at least a portion of the object between adjacent frames, and to set the sensor exposure time to a second value that is substantially different than the first value in response to a determination that there is no movement of the at least a portion of the object between adjacent frames; the controller further being configured to adjust at least one of the sensor exposure time and the sensor gain to substantially maintain a luminance value of the plurality of frames at a target luminance value irrespective of whether the motion detector determines that there is movement of the at least a portion of the object between adjacent frames or not; wherein the target luminance value is one of a first target color luminance value and a first target black and white luminance value, the device further comprising: a color detector to determine whether the image is a color image or a black and white image; wherein the controller is configured to adjust at least one of the sensor exposure time and the sensor gain to substantially maintain the luminance value of the plurality of frames at different first or second target luminance values dependent upon whether the image is determined to be the color image or the black and white image, the target luminance value being greater for the color image than the black and white image. a color detector to determine whether the image is a color image or a black and white image; wherein the controller is configured to adjust at least one of the sensor exposure time and the sensor gain to substantially maintain the luminance value of the plurality of frames at different first or second target luminance values dependent upon whether the image is determined to be the color image or the black and white image, the target luminance value being greater for the color image than the black and white image.