An imaging device includes a controller; an image sensor connected to the controller and outputting RAW data; and a memory connected to the controller. The image sensor is configured to output the RAW data to the controller at a predetermined pixel output rate. The controller generates first image data by reducing the RAW data output from the image sensor. The controller generates second image data by carrying out correction processing with respect to the first image data. The controller is configured to store the RAW data output from the image sensor and the second image data in the memory.