Disclosed herein is an image processing method, including: comparing a first low-magnification image as a low-magnification image of a first observation object, and a second low-magnification image of a second observation object similar to the first observation object with each other by an image comparing portion, thereby obtaining a difference between a position of the first observation object in the first low-magnification image, and a position of the second observation object in the second low-magnification image; and displaying a first high-magnification image as a high-magnification image of the first observation object, and a second high-magnification image as a high-magnification image of the second observation object in conjunction with each other in accordance with the difference on a display device by an image displaying portion.