Operation Manual

Operation
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4.4 The Color Dropout Tab
Color Dropout tab allows you to filter out a color channel (red, green, or blue). For
example, if you are scanning a document with a red watermark, you can choose to filter
out the red channel so the scanned image just shows the text and not the red
watermark. Removing colors from the scan might reduce the scan file size and improve
optical character recognition (OCR) result.
Note:
Color dropout only applies to gray and black and white scans.
4.4.1 Entering the RGB Values
You may specify the color to be removed by entering the RGB (Red, Blue and Green)
value respectively. Click the Clear button to reset your color.
4.4.2 Selecting Your Color
You may try the following way to select your color effectively.
1. After the scan is done, drag and drop your scanned image to Button Manager.
2. Check “Use a Magnifier” and choose your specific color on the scanned image. The
RGB value for the color will be displayed.