An image processing method and device are provided. The image processing device includes an image sensor module including a lens and an image sensor; and a processor configured to obtain, using the image sensor module, a first image having first color information, the first image corresponding to an external object, by; move at least one of the lens and the image sensor based on a designated pixel unit; obtain, using the image sensor module with the moved at least one of the lens and the image sensor, a second image having second color information, the second image corresponding to the external object; and generate a third image having third color information based on the first color information and the second color information, the third image corresponding to the external object.