1. An image processing device comprising: a pattern type determination unit in which a predetermined pattern is determined corresponding to color information of an image; a region setting unit in which a predetermined region in the image is set; an image data generation unit in which image data including the image and the pattern are included; and a size correction unit in which a size of the pattern corresponding to a size of the region is changed, or a position correction unit in which a positional relationship between a characteristic portion from which a type of the pattern included in the pattern which is determined in the pattern type determination unit can be determinated and the region which is set in the region setting unit is corrected, wherein, when the position correction unit is included, an applying position of the characteristic portion in the region can be corrected toward a center of gravity of the region by the position correction unit.