HP scanjet 3300c / HALFTONE output ?

[stuseven]

+
Using an HP Scanjet 3300c, Im trying to produce HALFTONE output...
Ive seen
this as an option on some menus, but on my current menu I see just
three options...
"color / grayscale / lineart"... thats it.

This is using the sane scanning program, via gimp.

Would this be a problem of installing a specific backend possibly
? If so, I have not
done this yet... otherwise, the scanner does otherwise work fine with
this software, it
just doesnt show a HALFTONE option.

Any help appreciated

(e-mail address removed)

 

[CSM1]

+
Using an HP Scanjet 3300c, Im trying to produce HALFTONE output...
Ive seen
this as an option on some menus, but on my current menu I see just
three options...
"color / grayscale / lineart"... thats it.

This is using the sane scanning program, via gimp.

Would this be a problem of installing a specific backend possibly
? If so, I have not
done this yet... otherwise, the scanner does otherwise work fine with
this software, it
just doesnt show a HALFTONE option.

Any help appreciated

(e-mail address removed)

Halftone is produced by printers and by printing press halftone screens.
See Digital halftoning at the bottom of this page.
http://en.wikipedia.org/wiki/Halftone

If you are talking about the moiré you get when scanning magazines and
newsprint.
http://www.scantips.com/basics06.html

You and use the Manual method for scanning halftone.
http://www.scantips.com/basics6c.html


Scan in grayscale at the max optical resolution of the scanner (600dpi).

 

[stuseven]

.. nope, sorry... I know how printing companies produce halftone... Im
looking to
do this from my scanner, as is shown on some pages.