An image acquisition apparatus includes a first image sensor configured to obtain a first image based on detection of a light of a first wavelength band; a second image sensor configured to obtain a second image based on detection of a light of a second wavelength band that is wider than the first wavelength band; and a processor configured to obtain a third image having a spatial resolution corresponding to the first image and a color gamut corresponding to the second image based on the first image and the second image. The image acquisition apparatus may provide an image with a high spatial resolution and a wide color gamut.