[sane-devel] problems with scanimage
johon Doe
johond at yahoo.com
Thu Dec 15 09:02:30 UTC 2005
--- Henning Meier-Geinitz <henning at meier-geinitz.de>
wrote:
> Hi,
>
> On Wed, Dec 14, 2005 at 09:43:13AM -0800, johon Doe
> wrote:
> The backend you use doesn't seem to provide the
> option "custom-gamma".
> scanimage --help shows all available options.
> By the way, which backend and scanner do you use?
>
ok, I undestand.. I use epson backend..
> > scanimage: attempted to set inactive option
> halftoning
>
> Thwe option "halftoning" seems to exist in your
> backend, but it
> doesn't work in the current mode. maybe it works in
> mode "lineart"?
>
no it doesnt work ..
> > scanimage --brightness 1 >> prova4.tiff
> It's similar in this case. The order of options is
> important, by the
> way. Setting the mode before brightness may help if
> gray mode uses
> option brightness.
>
$ scanimage --mode Gray --brightness 1
scanimage: attempted to set inactive option brightness
Anyway I forgotten to say that the epson scanner is
over the lan (with saned) and if I use sanetwain on
win32 I see lot's of options are disabled but if I use
xsane on linux all options work fine...
> You can also check if an option is active in a
> specific mode like this:
>
> scanimage --mode Gray --help
>
$ scanimage --mode Gray --help
Usage: scanimage [OPTION]...
Start image acquisition on a scanner device and write
PNM image data to
standard output.
-d, --device-name=DEVICE use a given scanner device
(e.g. hp:/dev/scanner)
--format=pnm|tiff file format of output file
-i, --icc-profile=PROFILE include this ICC profile
into TIFF file
-L, --list-devices show available scanner
devices
-f, --formatted-device-list=FORMAT similar to -L, but
the FORMAT of the output
can be specified: %d
(device name), %v (vendor),
%m (model), %t (type), and
%i (index number)
-b, --batch[=FORMAT] working in batch mode,
FORMAT is `out%d.pnm' or
`out%d.tif' by default
depending on --format
--batch-start=# page number to start naming
files with
--batch-count=# how many pages to scan in
batch mode
--batch-increment=# increase number in filename
by an amount of #
--batch-double increment page number by
two for 2sided originals
being scanned in a single
sided scanner
--batch-prompt ask for pressing a key
before scanning a page
--accept-md5-only only accept authorization
requests using md5
-n, --dont-scan only set options, don't
actually scan
-T, --test test backend thoroughly
-h, --help display this help message
and exit
-v, --verbose give even more status
messages
-V, --version print version information
Options specific to device
`net:192.168.1.21:epson:libusb:001:002':
Scan Mode:
--mode Binary|Gray|Color [Gray]
Selects the scan mode (e.g., lineart,
monochrome, or color).
--depth 8 [inactive]
Number of bits per sample, typical values are
1 for "line-art" and 8
for multibit scans.
--halftoning None|Halftone A (Hard Tone)|Halftone
B (Soft Tone)|Halftone C (Net Screen)|Dith
er A (4x4 Bayer)|Dither B (4x4 Spiral)|Dither C (4x4
Net Screen)|Dither D (8x4 Net Screen)|Text
Enhanced Technology|Download pattern A|Download
pattern B [inactive]
Selects the halftone.
--dropout None|Red|Green|Blue [None]
Selects the dropout.
--brightness 0..0 [inactive]
Selects the brightness.
--sharpness -2..2 [inactive]
--gamma-correction User defined (Gamma=1.0)|User
defined (Gamma=1.8) [User defined (Gamma=1.
8)]
Selects the gamma correction value from a list
of pre-defined devices
or the user defined table, which can be
downloaded to the scanner
--color-correction No Correction|User
defined|Impact-dot printers|Thermal printers|Ink-jet p
rinters|CRT monitors [inactive]
Sets the color correction table for the
selected output device.
--resolution 75|150|300|600dpi [75]
Sets the resolution of the scanned image.
--threshold 0..255 [inactive]
Select minimum-brightness to get a white point
Advanced:
--mirror[=(yes|no)] [inactive]
Mirror the image.
--speed[=(yes|no)] [no]
Determines the speed at which the scan
proceeds.
--auto-area-segmentation[=(yes|no)] [inactive]
--short-resolution[=(yes|no)] [no]
Display short resolution list
--zoom 50..200 [inactive]
Defines the zoom factor the scanner will use
--red-gamma-table 0..255,...
Gamma-correction table for the red band.
--green-gamma-table 0..255,...
Gamma-correction table for the green band.
--blue-gamma-table 0..255,...
Gamma-correction table for the blue band.
--wait-for-button[=(yes|no)] [no]
After sending the scan command, wait until the
button on the scanner
is pressed to actually start the scan process.
Color correction coefficients:
--cct-1 -127..127 [inactive]
Controls green level
--cct-2 -127..127 [inactive]
Adds to red based on green level
--cct-3 -127..127 [inactive]
Adds to blue based on green level
--cct-4 -127..127 [inactive]
Adds to green based on red level
--cct-5 -127..127 [inactive]
Controls red level
--cct-6 -127..127 [inactive]
Adds to blue based on red level
--cct-7 -127..127 [inactive]
Adds to green based on blue level
--cct-8 -127..127 [inactive]
Adds to red based on blue level
--cct-9 -127..127 [inactive]
Controls blue level
Preview:
--preview[=(yes|no)] [no]
Request a preview-quality scan.
--preview-speed[=(yes|no)] [no]
Geometry:
-l 0..215.9mm [0]
Top-left x position of scan area.
-t 0..297.18mm [0]
Top-left y position of scan area.
-x 0..215.9mm [215.9]
Width of scan-area.
-y 0..297.18mm [297.18]
Height of scan-area.
--quick-format CD|A5 portrait|A5
landscape|Letter|A4|Max [Max]
Optional equipment:
--source Flatbed [inactive]
Selects the scan source (such as a
document-feeder).
--auto-eject[=(yes|no)] [inactive]
Eject document after scanning
--film-type Positive Film|Negative Film [inactive]
--focus-position Focus on glass|Focus 2.5mm above
glass [inactive]
Sets the focus position to either the glass or
2.5mm above the glass
--bay 1 | 2 | 3 | 4 | 5 | 6 [inactive]
Select bay to scan
--eject [inactive]
Eject the sheet in the ADF
--adf_mode Simplex|Duplex [inactive]
Selects the ADF mode (simplex/duplex)
Type ``scanimage --help -d DEVICE'' to get list of all
options for DEVICE.
List of available devices:
net:192.168.1.21:epson:libusb:001:002
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