Canon 3624B002 User Manual - Page 122

Chapter 8 ISIS/TWAIN Driver Settings Document Orientation Specify a rotation angle to correct the orientation of images. Hint Scanned images are rotated as follows, according to the orientation of loaded documents and the selected angle. Feeder Document: Face Up Document Orientation (Clockwise) 0 degrees 90 degrees 180 degrees 270 degrees Output Image [Reverse Image] Check Box (TWAIN driver only) Select this check box to output images scanned in blackand-white (binary) with the black-and-white shades reversed. IMPORTANT This function is not available when the color mode is set to [256level Gray] or [24-bit Color]. [Text Orientation Recognition] Check Box Select this check box to detect text orientation in scanned images, and rotate the images in 90º increments as needed to normalize orientation. Text Orientation Output Image IMPORTANT • When [Text Orientation Recognition] is selected, the [Document Orientation] and area settings set in the Scan Area dialog box are disabled. • Some application programs do not support [Text Orientation Recognition]. Please disable [Text Orientation Recognition] if your application program behaves abnormally when this setting is enabled. [Erase Dot] Check Box Select this check box to remove isolated pixels (up to 3x3 dots) from a white background. [Border Removal] Check Box Select this check box to remove black areas created around images during scanning. [Punch Hole Removal] Check Box Select this check box to remove black circles created during scanning of documents with punch holes for storage in a binder. IMPORTANT If punch holes are located within text or graphics in the document, they may be misidentified as graphics, and may not be removed. [Prevent Bleed-Through / Remove Background] Check Box Select this check box to prevent bleed-through when scanning thin document pages and those with dark content on the back side, or to remove the background from document images. 8-17