Ricoh ISO1 Manual do Operador descarregar pdf (Página 72)

SCANNER FEATURES

A-14

Binary filter

Function

You can use the following binary filters for binary scanning:

Noise elimination

- eliminates independent black or white dots.

Smoothing

- flattens uneven dots.

Thickening black lines

- thickens thin lines.

Edge extraction

- extracts outlines of the image.

Usage

Use these filters as shown below.

Noise elimination

Use this filter when scanning a document that has been copied several

times. Black dots in a white area and white dots in a black area are

eliminated.

Smoothing

When edges of a scanned image are uneven, scan the image again with this

filter to even out the edges.

Thickening black lines

Use this filter when scanning thin lines or characters.

Edge extraction

Use this filter when you want to obtain outlines of an image, (for design

purposes, for example).

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Ricoh ISO1 Manual do Operador Página 72