Image processing device and image processing method

An image processing device is provided that enables an operator to reduce time and effort, and that enables an image to be read stably without receiving the influence of a shadow generated after calibration. The image processing device includes: a tint component removing unit that removes a tint component from a captured image; a character information removing unit that removes character information from an image obtained by removing the tint component; a dividing unit that performs grouping on the captured image according to a combination of hue and saturation; a calculating unit that calculates, for each group, correction data for correcting the shadow in accordance with an image obtained by removing the character information and an image obtained by grouping; and a correcting unit that corrects the captured image in accordance with the calculated correction data.