There is no brightness option. I don't know if genesys does that for any models, or in a later sane-backends version. Stef might comment further.
allan On Thu, Dec 6, 2012 at 1:38 PM, Felipe de Jesus Garcia Martinez <felipe.garcia at microformas.com.mx> wrote: > Output > > root at GSI-000434:/home/val# scanimage --help > [sanei_debug] Setting debug level of dll to 0. > Usage: scanimage [OPTION]... > > Start image acquisition on a scanner device and write image data to > standard output. > > Parameters are separated by a blank from single-character options (e.g. > -d epson) and by a "=" from multi-character options (e.g. > --device-name=epson). > -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), %i (index number), and > %n (newline) > -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 page number in filename by # > --batch-double increment page number by two, same as > --batch-increment=2 > --batch-prompt ask for pressing a key before scanning a page > --accept-md5-only only accept authorization requests using md5 > -p, --progress print progress messages > -n, --dont-scan only set options, don't actually scan > -T, --test test backend thoroughly > -A, --all-options list all available backend options > -h, --help display this help message and exit > -v, --verbose give even more status messages > -B, --buffer-size=# change input buffer size (in kB, default 32) > -V, --version print version information > > Options specific to device `genesys:libusb:002:002': > Scan Mode: > --mode Color|Gray|Lineart [Gray] > Selects the scan mode (e.g., lineart, monochrome, or color). > --source Flatbed|Transparency Adapter [inactive] > Selects the scan source (such as a document-feeder). > --preview[=(yes|no)] [no] > Request a preview-quality scan. > --depth 8|16 [8] > Number of bits per sample, typical values are 1 for "line-art" and 8 > for multibit scans. > --resolution 2400|1200|600|300|150|100|75dpi [300] > Sets the resolution of the scanned image. > Geometry: > -l 0..213.8mm [0] > Top-left x position of scan area. > -t 0..300mm [0] > Top-left y position of scan area. > -x 0..213.8mm [213.8] > Width of scan-area. > -y 0..300mm [300] > Height of scan-area. > Enhancement: > --custom-gamma[=(yes|no)] [no] > Determines whether a builtin or a custom gamma-table should be used. > --gamma-table 0..65535,... [inactive] > Gamma-correction table. In color mode this option equally affects > the > red, green, and blue channels simultaneously (i.e., it is an > intensity > gamma table). > --red-gamma-table 0..65535,... [inactive] > Gamma-correction table for the red band. > --green-gamma-table 0..65535,... [inactive] > Gamma-correction table for the green band. > --blue-gamma-table 0..65535,... [inactive] > Gamma-correction table for the blue band. > --swdeskew[=(yes|no)] [no] > Request backend to rotate skewed pages digitally > --swcrop[=(yes|no)] [no] > Request backend to remove border from pages digitally > --swdespeck[=(yes|no)] [no] > Request backend to remove lone dots digitally > --despeck 1..9 (in steps of 1) [1] > Maximum diameter of lone dots to remove from scan > Extras: > --lamp-off-time 0..60 [15] > The lamp will be turned off after the given time (in minutes). A > value > of 0 means, that the lamp won't be turned off. > --threshold 0..100% (in steps of 1) [50] > Select minimum-brightness to get a white point > --threshold-curve 0..127 (in steps of 1) [50] > Dynamic threshold curve, from light to dark, normally 50-65 > --disable-dynamic-lineart[=(yes|no)] [no] > Disable use of a software adaptive algorithm to generate lineart > relying instead on hardware lineart. > --disable-interpolation[=(yes|no)] [no] > When using high resolutions where the horizontal resolution is > smaller > than the vertical resolution this disables horizontal interpolation. > --color-filter Red|Green|Blue|None [None] > When using gray or lineart this option selects the used color. > Sensors: > Buttons: > --clear-calibration [] > Clear calibration cache > > Type ``scanimage --help -d DEVICE'' to get list of all options for DEVICE. > > List of available devices: > genesys:libusb:002:002 > > Felipe Garc?a Mart?nez > Gerente de Sistemas Internos > Microformas, S.A. de C.V. > Tel. 11675219 > Cel. 5510496939 > > El presente mensaje de datos, contiene informaci?n confidencial que tambi?n > puede constituir un secreto industrial propiedad de MICROFORMAS, S.A. DE > C.V. y va dirigido al destinatario. Si usted no es el destinatario del > presente mensaje de datos, por este conducto, se le informa, para todos los > efectos a que haya lugar, que no cuenta con la autorizaci?n para divulgar, > usar, apoderarse, copiar, distribuir, reproducir y/o tomar cualquier acci?n > en relaci?n al contenido de este mensaje de datos, por lo cual, lo anterior > queda expresamente prohibido. Se le solicita que notifique inmediatamente > por correo electr?nico al remitente si usted recibi? este correo por error > y, adem?s, deber? de borrar este mensaje de datos de su sistema o > computadora o dispositivo. > > La transmisi?n por medios electr?nicos no puede garantizar que sea segura o > libre de errores, toda vez que la informaci?n puede ser interceptada, > corrompida, alterada, destruida, llegar demorada o incompleta o contener > virus. Por tal motivo, el remitente no asume responsabilidad alguna por lo > anterior y si se requiere verificaci?n, hacerlo por tel?fono, a trav?s de > otro correo electr?nico, o bien, solicitar una versi?n escrita de manera > f?sica, a manera de confrmaci?n. > MICROFORMAS, S.A. DE C.V., Luz Savi?on 1558 Col. Narvarte, Del. Benito > Ju?rez C.P. 03020, M?xico D.F., www.microformas.com.mx > > > > > 2012/12/6 m. allan noah <kitno455 at gmail.com> >> >> scanimage --help > > -- "The truth is an offense, but not a sin"
