An imaging apparatus includes: an imager including an imaging sensor configured to acquire an optical image; and a processor configured to: perform pixel displacement to displace a positional relationship between a subject and the imager in a unit of a pixel pitch or less; detect an amount and a direction of a shake; perform shake correction to correct the positional relationship between the subject and the imager based on a detection result; perform first imaging for a first predetermined number of times for each position of the pixel displacement to generate a first group of images; combine the images of the first group to generate a first high-resolution image; perform second imaging for a second predetermined number of times for each position of the pixel displacement to generate a second group of images; and combine the images of the second group to generate a second high-resolution image.