An endoscope device includes: a light source configured to perform any one of simultaneous lighting and sequential lighting； an image sensor including a plurality of pixels； a plurality of filters including at least one type of primary filter and a complementary filter； and a processor including hardware, the processor being configured to cause the light source to switch between the simultaneous lighting and the sequential lighting, when the simultaneous lighting is performed, perform interpolation processing to generate an output image by using an imaging signal generated from a pixel corresponding to the complementary filter, and when the sequential lighting is performed, perform interpolation processing to generate an output image by using an imaging signal generated from a pixel corresponding to the complementary filter as an imaging signal generated from a pixel corresponding to the at least one type of primary filter.
