1. An image processing method, comprising: displaying, by a display part of an image processing apparatus, a scanned image by scanning a scanning object; selecting, by a controller of the image processing apparatus, a plurality of regions of the displayed scanned image; setting, by the controller, an image process to be performed on the selected regions; and generating, by an image processor of the image processing apparatus, a final image by performing the set image process on the selected regions, the final image including a non-selected region of the scanned image and the selected regions on which the set image process is performed.