Patent 10477128 was granted and assigned to Nikon (Somalia) on November, 2019 by the United States Patent and Trademark Office.
Dehazed images are produced based on an atmospheric light image obtained form an input image as brightest pixels of a predetermined window and white map. The white map is median filtered, morphologically filtered and, in some examples, filtered with a guided filter, and the filtered image combined with the atmospheric light image to produce a dehazed image.