ALEXANDRIA, Va., July 3 -- United States Patent no. 12,347,079, issued on July 1, was assigned to NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS (Nanjing, China).
"Method for image defogging based on dark channel prior" was invented by Dengyin Zhang (Nanjing, China), Wenjie Zhang (Nanjing, China) and Zhou Ye (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image defogging method based on dark channel prior is provided, including: acquiring a dark channel image and a light channel image of a haze weather image according to a haze weather image; selecting pixel values in the light channel image and calculating an atmospheric light value A; obtaining a transmittance image based on the light...