An image processing device is configured to perform enhancement processing on a specific image, using multiple images of types that are different from one another at least one of which is captured at a time different from a time at which other images are captured. The image processing device includes a processor comprising hardware, the processor being configured to execute: acquiring the multiple images; calculating information representing a state of at least one of the multiple images that is used for enhancement; and creating an enhanced image by performing the enhancement processing on an image to be enhanced based on the information representing the state and the multiple images.