An image processing apparatus includes a processor that detects regions of interest for each of plural of observation images acquired by performing image pickup of an object, sequentially records the plurality of observation images as record images in either one of a first period from a first detection start at which a first region of interest starts to be detected to a first detection cessation at which detection of the first region of interest ceases and a second period from the first detection start to a second detection cessation at which detection of a second region of interest ceases, calculates a display timing at which the plurality of record images start to be reproduced, and performs processing for displaying at least one of the record images on a display screen of a display apparatus while sequentially displaying the plurality of observation images on the display screen at the display timing.
