Advanced Scanning

Note:

Filters are only available when you select a color or grayscale scan type.

Note:

Scanning runs slower when the Descreen filter is used because of the intensive computations required to process the image.

From the Filter drop-down list, choose one of the following:

Sharpen

The scanner software has a

 

sophisticated sharpening feature that

 

automatically sharpens an image

 

(makes it less blurry) by increasing

 

the contrast (distinction between

 

dark and light tones) between

 

adjacent pixels.

 

This is the default filter and is useful

 

primarily on photographs and

 

grayscale images.

Descreen

When photographs and illustrations

 

are printed in newspapers or

 

magazines, they are “screened”—a

 

process that turns images into tiny

 

dots. (If you look at a photograph in a

 

newspaper with a magnifying glass,

 

you’ll see that the image is actually

 

composed of many small dots.)

 

If you are scanning an image that has

 

been previously screened, you can

 

sometimes get undesirable results,

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