An image processing apparatus obtains a region of interest in a first image obtained by capturing an object by a first modality, derives a corresponding region corresponding to the region of interest in a second image obtained by capturing the object by a second modality different from the first modality, sets a display parameter of the second image based on one of pixel information of the corresponding region and pixel information of a region associated with the corresponding region, generates a display image of the second image based on the display parameter, and performs display control of the display image.