Canon imageFORMULA DR-S150 User Manual page 66

When you want to reduce the color unevenness
Check the check box of [Color unevenness reduction] on the [Image
control] tab to reduce the color unevenness.
You can control the level of color unevenness by enabling the [Setting]
button.
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.
When you want to reverse black and white in scanned
images
Select [Reverse Image] on the [Image control] tab sheet. This outputs
scanned images with black and white reversed.
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