This is a list of the ISIS/TWAIN driver settings available on the [Image processing] tab:

Edge emphasis

Adjusts the image contours. Move the slider toward Soft to soften the image contours, or toward Sharp to sharpen the image contours.

Document Orientation

Specify a rotation angle to correct the orientation of images.

[Reverse Image] Check Box (TWAIN driver only)

Select this check box to output images scanned in black-and-white (binary) with the black-and-white shades reversed.


This function is not available when the color mode is set to [256-level 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 90^o increments as needed to normalize orientation.

	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 when the background color setting on the [Others] tab sheet is set to [Black].

[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 when the background color setting on the [Others] tab sheet is set to [Black].


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.

Color drop-out

These selections are enabled for scanning modes other than 24-bit Color, so that you can select a primary color (red, green, blue) or gray to be ignored (dropped out) or enhanced.

The [Setting] buttons are enabled when [Drop-out color Custom] or [Custom Color Enhance] is selected, so that you can specify a color range in the [Color Settings] dialog box for drop-out or enhancement.

	The color range within the shaded (cross-hatched) area is dropped out or enhanced.
	You can move the shaded area by dragging with the mouse.
	You can change the specified color range by dragging the edges of the shaded area.
	Because your operating environment affects the colors you specify on screen, they may not match those actually dropped out or enhanced: that is, the colors you specify may not match those processed.