An image processing device includes: a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, acquiring an image to be displayed including a two-dimensional code and a positioning pattern superimposed, wherein the two-dimensional code defines information to be displayed on the basis of an image pattern including a first pixel value and a second pixel value, wherein the positioning pattern defines reference coordinates to display the information to be displayed; extracting the two-dimensional code from the image, using a first color component to extract a pixel value identified as the first pixel value and a pixel value identified as the second pixel value; and extracting the positioning pattern from the image using a second color component that identifies as identical to the first pixel value both pixel values that are identified as the first and second pixel values.