HP 6300C HP Scanjet 6300C Scanner PrecisionScan Pro - (English) User Guide - Page 92

Set threshold for black and white bitmaps, Applying the default threshold

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Set threshold for black and white bitmaps When you want to save a black and white image from a color or black and white photograph, you can often improve the result by changing the threshold for the division between black and white pixels. The black and white threshold can be changed with the Black & White Threshold tool for an image that has the Black & White Bitmap (raster) output type. (See page 38 for more about the Black & White Threshold tool.) Applying the default threshold s Click the Auto button in the Black & White Threshold tool. • The optimal black and white threshold setting determined by the scanning software is applied to the Black & White Threshold tool. • The result of the change to the threshold setting can be seen in the preview area. The Black & White Bitmap (raster) output type and a black and white threshold of 15 applied +$%& Image of a color photograph with the True Color output type È 4 Adjusting images of pictures Book Contents Index È HP PrecisionScan Pro User's Guide 92

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$%&
4
HP
PrecisionScan Pro
User’s Guide
92
Adjusting images of
pictures
Book Contents
Index
Set threshold for black and white bitmaps
When you want to save a black and white image from a
color or black and white photograph, you can often
improve the result by changing the threshold for the
division between black and white pixels.
The black and white threshold can be changed with the
Black & White Threshold
tool for an image that has the
Black & White Bitmap (raster)
output type. (See page
38
for more about the
Black & White Threshold
tool.)
Applying the default threshold
■
Click the
Auto
button in the
Black & White Threshold
tool.
•
The optimal black and white threshold setting
determined by the scanning software is applied to
the
Black & White Threshold
tool.
•
The result of the change to the threshold setting
can be seen in the preview area.
Image of a color
photograph with
the
True Color
output type
The
Black & White
Bitmap (raster)
output
type and a black
and white threshold
of 15 applied