Canon imageFORMULA DR-M140 User Manual page 54

When you do not want to scan colored lines and text
Specify the color (red, green, blue, all colors) to be ignored (dropped
out) in the color drop-out settings on the [Image processing] tab, and
that color will be removed from the scanned image.
When you want to enhance a particular color
Specify the color (red, green, blue) to be enhanced in the color drop-
out settings on the [Image processing] tab, and that color will be
enhanced in the scanned image.
When you want to enhance contours in images
Adjust the edge emphasis setting on the [Image processing] tab.
When you want to make lines and text in scanned images
thicker or thinner
Drag the [Character Emphasis] slider in the [Image processing] tab to
make lines and text in the scanned images thicker or thinner.
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