[sane-devel] problems with scanimage
Karl Heinz Kremer
khk at khk.net
Sun Dec 18 14:55:11 UTC 2005
What scanner are you using?
On Dec 15, 2005, at 4:02 AM, johon Doe wrote:
>
>
> --- 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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