Quote:
Originally Posted by Mushashi7
Use a completely black piece of paper on the opposite site of the image you want to scan,
as Sadielover suggests. It has to be mat and not glossy!
Glosssy paper will reflect the light and send it back through the paper and light up the opposite side.
It is common logic that black paper will absorb the light rays and not reflect.
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Your colour theory is sound, but in practice it isn't that simple as the page being scanned acts as a "filter" between the scanner's light source and the card. Thus both dark and light areas can be over exaggerated, i.e. too much or too little contrast.
A black sheet of paper (I use thin card) is far from ideal in my experience from scanning. I usually use two different sheets of coloured card. One slate grey sheet for black and white pages (both sides), and one brown sheet like milk chocolate brown (mustn't be reddish or yellowish) for all colour pages. Both sheets strike as much of a neutral ground as possible to minimise "ghosting", in fact the brown sheet works a treat for me for both B/W and colour pages. Try it.
