Canon 2455B002 Manual Do Utilizador

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You can set the scanning conditions to detect slanted document pages and 
straighten the scanned images.
Click the [Basic] tab in the settings dialog box, and then select the [Deskew] check 
box.
For more information on setting the scanning conditions, see Chapter 4, 
"ISIS/TWAIN Driver Settings - Correcting Image Skewing."

You can set the scanning conditions to reduce the moire effect (a shimmering, 
wavy pattern) that often appears when scanning color documents or scanning in 
grayscale.
Click the [Basic] tab in the settings dialog box, and then click [High Quality Moire 
Reduction] in the [Moire Reduction] box.
For more information on setting the scanning conditions, see Chapter 4, 
"ISIS/TWAIN Driver Settings - Moire Reduction."

You can set the scanning conditions to detect the text orientation in scanned 
images, and rotate the images in 90° increments as needed to normalize the 
orientation.
Click the [Image processing] tab in the settings dialog box, and then select the 
[Text Orientation Detection] check box.
For more information on setting the scanning conditions, see Chapter 4, 
"ISIS/TWAIN Driver Settings - Correcting Text Orientation."

You can set the scanning conditions to reduce bleed through when scanning thin 
document pages and those with dark content on the back side, or to remove the 
background from document images.
Click the [Image processing] tab in the settings dialog box, select the [Prevent 
Bleed Through / Remove Background] check box, and then click [Settings].
For more information on setting the scanning conditions, see Chapter 4, 
"ISIS/TWAIN Driver Settings - Removing the Document Background/Bleeding."

You can set the scanning conditions to omit borders and ruled lines of a specified 
color (red, green, or blue) from the scanned image. However, this function is only 
available when scanning in black-and-white.
Click the [Image processing] tab in the settings dialog box, and then click the color 
to omit in the [Color drop-out] box.
For more information on setting the scanning conditions, see Chapter 4, 
"ISIS/TWAIN Driver Settings - Omitting a Specific Color."

You can set the scanning conditions to enhance the red color when performing 
black and white scanning.
Click the [Image processing] tab in the settings dialog box, and then click [Red 
Enhance] in the [Color drop-out] box.
For more information on setting the scanning conditions, see Chapter 4, 
"ISIS/TWAIN Driver Settings - Enhancing the Red Color."

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