1. An image processing device comprising: circuitry configured to generate a composite image by compositing a plurality of color images having differing color components, each of the color images being acquired by image capture; and recognize, from the composite image, an information code formed by a plurality of cells, wherein the circuitry generates the composite image by setting, for each pixel of the composite image, an intensity value equal to a maximum value among intensity values of corresponding pixels in the plurality of color images and setting, for each pixel, a color corresponding to the maximum value, wherein at least one of the color images acquired by the image capture is different when captured under different color light, and the generated composite image is different when the color images are captured under the different color light.