An image processing system includes an image acquisition section that consecutively acquires still images, a direction determination section that determines a camera moving direction, a slit image generation section that generates slit images based on the consecutively acquired still images, and a panoramic image generation section that performs a synthesis process of the slit images to generate a panoramic image. The direction determination section determines whether the camera moving direction is a first camera moving direction or a second camera moving direction when the imaging section is moved during capture. The panoramic image generation section performs the synthesis process of each slit image based on the camera moving direction when the consecutively acquired still images were captured to generate the panoramic image.