ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,524,855, issued on Jan. 13, was assigned to InterDigital CE Patent Holdings SAS (Paris).
"Method and apparatus for inverse tone mapping" was invented by Laurent Cauvin (Chevaigne, France), Marie-Jean Colaitis (Cesson-Sevigne, France), Frederic Plissonneau (Thorigne-Fouillard, France) and Guillaume Poirier (Rennes, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for inverse tone mapping includes obtaining a histogram of a low dynamic range image, called LDR image and obtaining an ITMO function, allowing obtaining a pixel value of a High Dynamic Range image, called HDR image, from a pixel value of the LDR image and a gain function depending...