|
If your scanner supports black&white scan (no gray, just those two colors, i.e. 1 bit), try that first. It should let you select a threshold (the point where a color is considered white, or black resp.) which you should change until only the text remains black and none of the background. If you're getting blotchy or thin characters regardless which threshold you choose, yank up the resolution a bit.
Note that this only works for text, not any kind of images (except maybe unshaded lineart).
Alternatively do a grayscale scan and threshold it yourself - unless the OCR software is really smart and able to choose the best threshold for itself.
If it's a really bad background color (such as dark red) you might have to do a color scan, or adjust how colors are translated to grayscale by the scanner (if there is such an option at all), since some colors end up being simply too dark in grayscale.
|