how do I make original template settings?
djcc-37.htm[28/10/2014 15:47:39]
the whole color balance. Often it's best to keep the three channels
on the same levels. Experiment with the different effects through
previewing.
Select negative values to reduce the total content of the color and
select positive values to increase the total content of the color.
Black enhance and background clean
The black enhance option is used to change dark graytone colors to
true black.
For example, if you are copying a brochure with a mixture of text and
pictures, the text will often be digitized to a color that we may see as
black but really is a dark graytone. When the printer digests this
graytone data, it will print the original's text with a halftone pattern,
meaning scattered dots instead of solid black.
By increasing the black enhance value, you can get the text to be
copied in real black and it will therefore appear clearer.
Use the black enhance option with caution, because it can change
other dark colors (not only grays) into black, making small dark
spots appear in the picture.
Background clean is used if you have an original with a background
that is not completely white. If you want your background to appear
as pure white then you can increase the background clean value. As
with black enhance, background clean should be used with caution,
as it can also affect some of the other light colors.
Both black enhance and background clean function as "cutoff" values
in which pixels under or over a certain value are affected by the
setting. You define cutting points on a scale of low to high lightness
measured in values from 0 to 255. The default value of both options
is zero (no effect).
Example:
You have copied an original and want to improve it by making the
text blacker and the background whiter:
Adjust the black enhance value upwards from its default of zero
(to 25, for example) and thus make pixels with low lightness
values go to black.
Adjust the background clean value upwards from its default of
zero (to 25, for example) and thus make the pixels at high
lightness levels go to white.
You can give your copy sharper lines with the Sharpen option. The
Sharpen feature identifies edges in the image and intensifies them.
Sharpen/Blur
The Blur feature blends colors and thus removes unwanted "noise"
during image capture. Many images are created with dithering, which
is used for representing different colors in the original, and this
dithering often creates unnecessary "noise" in the image. Blurring