User’s Manual4-264.4 The Color Dropout Tab4.4.1 Color Dropout SelectionColor Dropout tab allows you to drop either of the red, blue,or green color in your scanned image. If your image containsred color watermark or background, choose the R (Red)channel then any red watermark or background will beremoved. This feature is used to sharpen your text whenusing OCR (Optical Character Recognition) software.The “Custom” option allows you to specify your desired colorto be removed by entering its RGB (Red, Green, and Blue)value respectively.Tolerance: Specify the allowable color range to be removedfor the color you selected. Specified range: 1 ~ 100The large the numeric value, the wider the color dropoutrange is.Note that this function supports only black & white and grayimages. Therefore, be sure to choose any black & white orgray image type while applying this function.
