An image processing apparatus measures a subject distance using a plurality of captured images acquired by capturing the same subject in a plurality of imaging states in succession of time. The image processing apparatus includes a target motion amount estimation unit that estimates a target motion amount representing an amount of shift in subject position between first and second images among the captured images. The first image is captured in a first imaging state and a second image is captured in a second imaging state different from the first imaging state. A corrected image generation unit generates a corrected image by performing motion compensation on the second image based on the target motion amount, and an image processing unit performs image processing such as measuring a subject distance or generating an HDR image, using the first image and the corrected image.