Image Scanner User's Manual
¡ Binary filter
Function: You can use 4 binary filters; noise elimination, smoothing, thickening black lines
and edge extraction in 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: For example, use filters at following cases.
Noise elimination: Use this filter when scaninng a document which is copied several times. Black dots in a white area and white dots in a black area will be eliminated.
| not filtered | filtered |
Smoothing: | If edges of a scanned image are uneven, scan it with this | |
| filter again. Edges will be even. | |
not filtered | filtered |
Thickening black lines: Use this filter when scanning thin lines or characters.
| not filtered | filtered |
Edge extraction: | Use this filter if you need outlines of an image for design | |
| etc. |
|
not filtered | filtered |
|
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