A camera module may include an image sensor including an optical device configured to rotate about at least one of an x-axis, a y-axis, and a z-axis perpendicular to each other, in response to a mode signal, and configured to generate a plurality of first images, each first image generated when the optical device is at a different position; and an image signal processor (ISP) configured to process the plurality of first images, wherein the ISP is further configured to obtain a plurality of parameters pre-stored according to the mode signal, correct the plurality of first images by using the plurality of parameters, and generate a second image by merging the corrected first images.