An image processing device is provided. The image processing device comprising a first lens, a second lens disposed on one side of the first lens, a third lens disposed on the other side of the first lens, a first image sensor which receives an input of a first image obtained from the first lens to generate a first image signal, a second image sensor which receives an input of a second image obtained from the second lens to generate a second image signal, a third image sensor which receives an input of a third image obtained from the third lens to generate a third image signal, a selector which receives the input of the second image signal and the third image signal, outputs the second image signal under a first condition, and outputs the third image signal, under a second condition different from the first condition and an image processor which performs image processing, using the first image signal and an output signal of the selector.