1. An image processing apparatus comprising: a) extraction means for extracting an outline of an image represented by input image data; b) process means for coloring the outline extracted by said extraction means with a finite width; and c) identifying means for identifying any isolated points in the image; and d) control means for controlling said process means so that the outline of the image other than any such isolated point in the image is colored, while the outline of any such isolated point is not colored, so that any such isolated point is retained in the image and the outline of any such isolated point is not colored.