ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,556,642, issued on Feb. 17, was assigned to Canon K.K. (Tokyo).
"Image processing apparatus which converts color images to monochrome with perceptible gradations in gray value, and image processing method and storage medium for same" was invented by Kimimori Eguchi (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a case where a plurality of colors is included in the color image, the modification unit calculates a gray value difference indicating a difference between two adjacent gray values for a plurality of the gray values corresponding to the plurality of colors and arranged in order from the largest gray value, in a case where the cal...