1. An image processing apparatus comprising: at least one image input unit, to which a plurality of input images are input according to respective frame rates; and a controller that arranges an operation time and an operation order of each of tasks for processing a corresponding image of the plurality of input images according to the respective frame rates, and performs each of the tasks according to the operation time and the operation order, wherein the operation time of each of the tasks is calculated based on the respective frame rates of each of the tasks, and the tasks are performed at sequential integer intervals of their respective operation time, wherein the sequential integer intervals are greater than one, and wherein the sequential integer intervals are less than one second.