An image processing method including: determining whether an operation mode of a system is a control mode for still image display or a view mode for video display; and performing processing in accordance with the operation mode. Processing in the control mode includes: specifying a specific video frame image including a suitable image of a subject of image processing, from among video frame images of a video constituted of a plurality of video frame images each including an image of the subject; displaying the specific video frame image as a still image; and receiving control related to image processing from a user. Processing in the view mode includes: performing image processing with respect to each video frame image that is input, one video frame image at a time; and displaying the result of image processing for the user to view.