ALEXANDRIA, Va., July 15 -- United States Patent no. 12,664,631, issued on June 23, was assigned to Socionext Inc. (Kanagawa, Japan).

"Image processing device, image processing method, and recording medium" was invented by Yuji Umezu (Yokohama, Japan) and Atsushi Matsuzaka (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An image processing device includes a memory and a processor configured to calculate a reference black level and a reference illumination light component based on pixel values of peripheral pixels located around a target pixel for image processing using image data acquired by an imaging device, correct a black level of the target pixels based on the reference black level calcu...