An image processing apparatus includes an obtainment unit configured to obtain first image data obtained by capturing an image of an object, a generation unit configured to generate second image data representing a second image by performing conversion to maintain a specific gradation in a color saturation range in a case where a hue or color saturation of a region of interest in a first image represented by the first image data is converted according to a characteristic of a display unit, a conversion unit configured to perform conversion on the first image and the second image according to the characteristic of the display unit, and a display control unit configured to display the converted first image and the converted second image together on the display unit.