{"id":4271,"date":"2022-12-20T17:48:50","date_gmt":"2022-12-20T20:48:50","guid":{"rendered":"http:\/\/lode.uno\/linux-man\/index.php\/2022\/12\/20\/saneleo-man5\/"},"modified":"2022-12-20T17:48:50","modified_gmt":"2022-12-20T20:48:50","slug":"saneleo-man5","status":"publish","type":"post","link":"https:\/\/lode.uno\/linux-man\/2022\/12\/20\/saneleo-man5\/","title":{"rendered":"sane−leo (man5)"},"content":{"rendered":"

sane\u2212leo<\/h1>\n

NAME<\/a>
DESCRIPTION<\/a>
CONFIGURATION FILE<\/a>
FILES<\/a>
ENVIRONMENT<\/a>
LIMITATIONS<\/a>
BUGS<\/a>
SEE ALSO<\/a>
AUTHOR<\/a> <\/p>\n

\n

NAME <\/a> <\/h2>\n

sane\u2212leo \u2212 SANE backend for LEO Technologies scanners<\/p>\n

DESCRIPTION <\/a> <\/h2>\n

The sane\u2212leo<\/b> library implements a SANE (Scanner Access Now Easy) backend that provides access to some LEO SCSI flatbed scanners. This backend should be considered beta-quality<\/b> software! LEO scanners were also sold under the Across Technologies brand.<\/p>\n

The scanners that should work with this backend are:<\/p>\n

Vendor Model status
———————- ———–
Across FS-1130 tested
LEO S3 tested<\/p>\n

The options the backend supports can either be selected through command line options to programs like scanimage<\/b>(1) or through GUI elements in xscanimage<\/b>(1) or xsane<\/b>(1).<\/p>\n

If you have any strange behavior, please report to the backend maintainer or to the SANE mailing list.<\/p>\n

Valid command line options and their syntax can be listed by using<\/p>\n

scanimage \u2212\u2212help \u2212d leo<\/p>\n

Scan Mode<\/b><\/p>\n\n\n
<\/td>\n\n

\u2212\u2212mode<\/b><\/p>\n<\/td>\n

<\/td>\n\n

selects the basic mode of operation of the scanner. Valid choices are Black & White<\/i>, Grayscale<\/i> and Color<\/i>. The Black & White<\/i> mode is black and white only (1 bit). Grayscale<\/i> mode will produce 256 levels of gray (8 bits). Color<\/i> mode will produce a 24 bit color image.<\/p>\n<\/td>\n<\/tr>\n<\/table>\n

\u2212\u2212resolution<\/b><\/p>\n

selects the resolution for a scan. The scanner can do all resolutions between 1 and 300, in increments of 1.<\/p>\n

Geometry options
\u2212l \u2212t \u2212x \u2212y<\/b><\/p>\n

control the scan area: \u2212l sets the top left x coordinate, \u2212t the top left y coordinate, \u2212x selects the width and \u2212y the height of the scan area. All parameters are specified in millimeters by default.<\/p>\n

Enhancement options
\u2212\u2212custom\u2212gamma<\/b><\/p>\n

(grayscale and color mode only) allows the user to specify a gamma table (see the next 3 parameters).<\/p>\n

\u2212\u2212red\u2212gamma\u2212table<\/b><\/p>\n

(color mode only) can be used to download a user defined gamma table for the red channel. The table must be 256 bytes long.<\/p>\n

\u2212\u2212green\u2212gamma\u2212table<\/b><\/p>\n

(color mode only) can be used to download a user defined gamma table for the green channel. The table must be 256 bytes long.<\/p>\n

\u2212\u2212blue\u2212gamma\u2212table<\/b><\/p>\n

(color mode only) can be used to download a user defined gamma table for the blue channel. The table must be 256 bytes long.<\/p>\n

\u2212\u2212halftone<\/b><\/p>\n

(Black & White only) select the halftone mask to use. Possible values are Diamond<\/i>, 8×8 Coarse Fatting<\/i>, 8×8 Fine Fatting<\/i>, 8×8 Bayer<\/i> and 8×8 Vertical Line<\/i>.<\/p>\n

\u2212\u2212preview<\/b><\/p>\n

requests a preview scan. The resolution used for that scan is 28 dpi and the scan area is the maximum allowed. The scan mode is user selected. The default is “no”.<\/p>\n

CONFIGURATION FILE <\/a> <\/h2>\n

The configuration file \/etc\/sane.d\/leo.conf<\/i> supports only one information: the device name to use (eg \/dev\/scanner<\/i>).<\/p>\n

FILES <\/a> <\/h2>\n

\/usr\/lib64\/sane\/libsane\u2212leo.a<\/i><\/p>\n

The static library implementing this backend.<\/p>\n

\/usr\/lib64\/sane\/libsane\u2212leo.so<\/i><\/p>\n

The shared library implementing this backend (present on systems that support dynamic loading).<\/p>\n

ENVIRONMENT <\/a> <\/h2>\n

SANE_DEBUG_LEO<\/b><\/p>\n

If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend. E.g., a value of 128 requests all debug output to be printed. Smaller levels reduce verbosity.<\/p>\n

LIMITATIONS <\/a> <\/h2>\n

The windows TWAIN driver has many more options than this SANE backend. However they are only software adjustments. This backend only implements what the scanner can support.<\/p>\n

BUGS <\/a> <\/h2>\n

None known.<\/p>\n

SEE ALSO <\/a> <\/h2>\n

sane\u2212scsi<\/b>(5), scanimage<\/b>(1), xscanimage<\/b>(1), xsane<\/b>(1), sane<\/b>(7)<\/p>\n

AUTHOR <\/a> <\/h2>\n

The package is actively maintained by Frank Zago.<\/p>\n

http:\/\/www.zago.net\/sane\/#leo<\/i><\/p>\n

\n","protected":false},"excerpt":{"rendered":"

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