1. A digital camera device, comprising: an image sensor configured to capture a main image of a scene and a preview image of the scene; wherein the main image is captured with flash turned on; wherein the preview image is captured with flash turned off; a red-eye filter configured to: determine whether a first region of the main image has a shape indicative of a red-eye phenomenon; determine whether a second region of the preview image, that corresponds to the first region of the main image, has the shape indicative of the red-eye phenomenon; and in response to determining that both the first region of the main image and the second region of the preview image have the shape indicative of the red-eye phenomenon, designate the first region of the main image as indicative of the red-eye phenomenon if the second region of the preview image does not have a color indicative of the red-eye phenomenon.