Abstract: A printing image forming apparatus in which a printer driver is installed. The printer driver forms a space in an image of an original document to be printed in which a note is inserted. An inserting device inserts text, images, graphics etc. as the note into the space formed, and a display indicating device displays a formed image on a screen of a display device as a preview. An operator can freely select and set the note by an operation of a button on a UI (User Interface) so as to edit the image of the page.

Abstract: In an image processor, an image property determination unit extracts a portion having extremely high luminance in image data as a high luminance pixel area, from the whole image, to determine the property of the input image data. An edge pixel extraction unit extracts pixels in the portion where the brightness level largely changes, for each of the respective pixels. A subject portion determination unit regards the position of the edge pixel as a boundary between the high luminance pixel area and the subject portion, based on the information for the extracted high luminance pixel area and the edge pixels. The subject portion determination unit then determines an area as the subject portion, the area being opposite to the high luminance pixel area with respect to the boundary. A brightness correction unit corrects the brightness of the subject portion and the high luminance pixel area.