Color perception: Color is the only physical quantity of modern optoelectronic technology that is not accurately recorded in modern optoelectronic technology. Different shooting environments / cameras, the object color presentation is different, and the camera shot also deviates from the real color. The hyperspectral imaging technology can record the complete visible spectrum in the image pixel, accurately analyze, check and measure the color, and bring the "digital revolution" of color determination, which can be applied to print anti-counterfeiting, color difference detection and other fields.