Apple Inc.
Image Flare Detection Using Asymmetric Pixels

Abstract:

A method for processing an image includes obtaining a set of pixel values captured from a pixel array during an image capture frame. The set of pixel values includes pixel values for a set of asymmetric pixels having different directional asymmetries. The method further includes detecting, using the pixel values for at least the asymmetric pixels and the different directional asymmetries of the asymmetric pixels, a directionality of image flare; and processing an image defined by the set of pixel values in accordance with the detected directionality of image flare. In some embodiments, image flare may be distinguished from noise using the set of pixel values.