Canon 4204B019AA User Manual page 566

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Advanced Guide Scanning with Other Application Software
Scanning
ScanGear (Scanner Driver)
Correcting Images and Adjusting Colors with ScanGear
(Scanner Driver)
The following sections provide you with tips and know-how on advanced scanning techniques involving
color/brightness adjustment, etc.
Sharpening out-of-focus photos, reducing dust and scratches, and correcting faded colors
Correcting Images (Unsharp Mask, Reduce Dust and Scratches, Fading Correction, etc.)
Previewing and changing the color tone of the entire image to scan
Adjusting Colors Using a Color Pattern
Brightening colors that have faded with time or due to colorcast
Adjusting Saturation and Color Balance
Adjusting images that are too dark or bright, or too flat due to lack of contrast
Adjusting Brightness and Contrast
Adjusting the color tone using histogram (a graph showing brightness distribution)
Adjusting Histogram
Adjusting the image brightness using tone curve (a graph of brightness balance)
Adjusting Tone Curve
Sharpening characters in text documents or reducing show-through effects
Setting Threshold
> Correcting Images and Adjusting Colors with
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