ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,530,757, issued on Jan. 20, was assigned to Apple Inc. (Cupertino, Calif.).

"Techniques for generating gain maps based on acquired images" was invented by Nicolas P. Bonnier (Mountain View, Calif.) and Jackson K. Roland (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are various techniques for generating gain maps. According to some embodiments, one technique for generating a gain map includes the steps of (1) accessing a high dynamic range (HDR) image, (2) accessing a standard dynamic range (SDR) image, (3) for each pixel shared between the HDR and SDR images: plotting the pixel onto a graph, wherein an HDR value of the pixel...