sane-sceptre(5)

📦
version 1.4.0 · 5 versions
, in centos-stream 10, centos-stream 9, fedora 43, fedora 44, opensuse-leap 16.0

okay so bestie, welcome to sane-sceptre(5) from SANE Scanner Access Now Easy — yes, this is the manual page for the SCEPTRE backend, and it's lowkey a whole vibe. 💅

💖 NAME 💖

sane-sceptre — SANE backend for SCEPTRE scanners, periodt. ✨

🦋 DESCRIPTION 🦋

The sane-sceptre library implements a SANE (Scanner Access Now Easy) backend that provides access to Sceptre flatbed scanners. 🫶

🚨 beta alert, fr fr: this backend should be considered beta-quality software! Please report any strange behavior to the maintainer of the backend or to the SANE mailing list. Not me, I'm just the messenger. 😭

At present, only one scanner is known to work with this backend:

  • Model: Sceptre VividScan S1200 — Connection Type: SCSI 🔥

The make of this scanner is KINPO, so other scanners from that manufacturer may also work (eg. the S600). iykyk 👑

✨ OPTIONS ✨

The options the backend supports can either be selected through command line options to programs like scanimage(1) or through GUI elements in xscanimage(1) or xsane(1). 🎀

Valid command line options and their syntax can be listed by using:

scanimage --help -d sceptre

🎛️ Scan Mode 🎛️

  • --mode Lineart|Halftone|Gray|Color — selects the basic mode of operation of the scanner. Lineart and Halftone mode are black and white only (1 bit). Gray will produce 256 levels of gray (8 bits). Color will produce a 24 bits color image. The scanner supports 30 bits internally but it only exports 24. 🌈
  • --resolution 50..1200 — selects the resolution for a scan. The scanner can do several resolutions between 50 and 1200. 🔍
  • --halftone-pattern 1|2|3|4 — selects the pattern mode that is used in Halftone mode. 🎨
  • --gamma-correction Default|User Defined|High Density Printing|Low density printing|High contrast printing — controls the scanner internal gamma correction. 💜
  • --custom-gamma — allows the user to specify a gamma table (see the next 3 parameters). Color mode only. 🎀
  • --red-gamma-table — can be used to download a user defined gamma table for the red channel. The table must be 256 bytes long. Color mode only. ❤️
  • --green-gamma-table — can be used to download a user defined gamma table for the green channel. The table must be 256 bytes long. Color mode only. 💚
  • --blue-gamma-table — can be used to download a user defined gamma table for the blue channel. The table must be 256 bytes long. Color mode only. 💙
  • --threshold 0..255 — sets the threshold for black and white pixels in Lineart mode. Possible values are from 0 (darker) to 255 (lighter). 🖤
  • --preview — requests a preview scan. The resolution used for that scan is 30 dpi and the scan area is the maximum allowed. The scan mode is user selected. The default is "no". 👀

📏 The geometry options 📏

These control the scan area. All parameters are specified in millimeters by default. 🦋

  • -l — sets the top left x coordinate of the scan area.
  • -t — sets the top left y coordinate of the scan area.
  • -x — selects the width of the scan area.
  • -y — selects the height of the scan area.

🎀 CONFIGURATION FILE 🎀

The configuration file /etc/sane.d/sceptre.conf supports only one item: the device name to use (eg /dev/scanner). That's it. One item. Iconic minimalism. 💅

🍓 FILES 🍓

  • /usr/lib64/sane/libsane-sceptre.a — the static library implementing this backend.
  • /usr/lib64/sane/libsane-sceptre.so — the shared library implementing this backend (present on systems that support dynamic loading).

🌈 ENVIRONMENT 🌈

  • SANE_DEBUG_SCEPTRE — 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. 🐛

💀 LIMITATIONS 💀

🔍 Resolutions 🔍

The windows TWAIN driver can be set to any resolution between 50 to 1200 (excluding software interpolation). This backend cannot. Only a handful of resolution are available, although they should be numerous enough. 😭

🐛 BUGS 🐛

None known. That's the whole section, bestie. ✨

👀 SEE ALSO 👀

sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)

👑 AUTHOR 👑

The package is actively maintained by Frank Zago. http://www.zago.net/sane/#sceptre 🫶

byeee 💖 this page's footer stamp is 11 Jul 2008 · sane-sceptre(5) — source/version and date, all wrapped up in a cute little sign-off. 🎀✨

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