US Patent Issued to Dolby Laboratories Licensing on June 24 for "Generating HDR image from corresponding camera raw and SDR images" (California Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,491, issued on June 24, was assigned to Dolby Laboratories Licensing Corp. (San Francisco).

"Generating HDR image from corresponding camera raw and SDR images" was invented by Guan-Ming Su (Fremont, Calif.), Tsung-Wei Huang (Sunnyvale, Calif.) and Tao Chen (Palo Alto, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Guided filtering is applied, with a camera raw image as a guidance image, to a first image to generate an intermediate image. A dynamic range mapping is performed on the intermediate image to generate a second image of a different dynamic range. The second image is used to generate specific local reshaping function index values for ...