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2.6.2 Invert Image
For information on the Invert Image property, refer to your application’s user manual or the
VRS User’s
Manual
.
2.6.3 Noise Removal
This image filter reduces the noise (black spots) of images. Noise is caused by particles of carbon
deposited from the printing by the copier or fax machine and by dirt and other foreign matter on the
documents when they are scanned.
When noise is removed from the text areas, the dots over the letters “i” and “j” and other information may
also be removed in error. To correct this, select a value larger than the gap between the dots and other
parts for the minimum gap setting.
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Note
When the Noise Removal and Crop functions are applied to the same image, better results are
yielded when Noise Removal is applied first. In order to obtain the optimum image quality and speed,
it is recommended that the settings of the image filters be adjusted while scanning an actual
document. Depending on the images being scanned, this filter may not function properly.
