1. An image retouching method comprising: a detecting step of detecting a local defect in an original image and distinguishing the type of the defect on the basis of image data representing the original image; a displaying step of displaying the defect detected at the detecting step with a mark corresponding to the type of the defect and receiving a correction to an inaccuracy in the detection of the defect displayed; and a retouching step of retouching the image data representing the original image according to the type of the defect of which any detection inaccuracy is corrected.