From fc22b3d6507c6745911b9dfcc68f1e665ae13dbc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 21:43:11 +0200 Subject: Adding upstream version 4.22.0. Signed-off-by: Daniel Baumann --- upstream/fedora-rawhide/man5/sane-canon.5 | 111 ++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 upstream/fedora-rawhide/man5/sane-canon.5 (limited to 'upstream/fedora-rawhide/man5/sane-canon.5') diff --git a/upstream/fedora-rawhide/man5/sane-canon.5 b/upstream/fedora-rawhide/man5/sane-canon.5 new file mode 100644 index 00000000..8a78007a --- /dev/null +++ b/upstream/fedora-rawhide/man5/sane-canon.5 @@ -0,0 +1,111 @@ +.TH sane\-canon 5 "11 Jul 2008" "" "SANE Scanner Access Now Easy" +.IX sane\-canon +.SH NAME +sane\-canon \- SANE backend for Canon SCSI scanners +.SH DESCRIPTION +The +.B sane\-canon +library implements a SANE (Scanner Access Now Easy) backend that +provides access to the following Canon flatbed and film scanners: +.PP +.RS +CanoScan 300 +.br +CanoScan 600 +.br +CanoScan FB620S +.br +CanoScan FB1200S +.br +CanoScan FS2700F +.br +CanoScan FS2710S +.br +.RE +.PP +Parallel port and USB scanners are not supported by this backend; see +the manual pages for +.BR sane\-canon_pp (5) +and +.BR sane\-canon630u (5) +for further information. +.PP +IMPORTANT: This is beta code. We tested the code on the scanners listed +above, using the computers and operating systems available to us, but we +cannot guarantee that the backend will work smoothly with future operating +systems, SCSI adapters, SANE frontend programs, or Canon scanners not +contained in the list above. In some cases your computer might even hang. +It cannot be excluded (although we consider it extremely unlikely) that your +scanner will be damaged. +.PP +That said, TESTERS ARE WELCOME. Send your bug reports and comments to +Manuel Panea +.IR ; +for questions concerning the FB620 and FB1200S contact Mitsuru Okaniwa +.IR , +for the FS2710S Ulrich Deiters +.IR . + +.SH TIPS (FS2700F) +.PP +Scanning either slides or negatives has been found to require rather +large gamma corrections of about 2.2 to 2.4 (same value for red, green, +and blue). It is recommended to use the automatic exposure controls +of the frontend +.BR xsane (1) +for best results. +.PP +The "Auto Focus" function triggers a special pass to determine the focus +value. After that, the real scanning pass takes place. +.PP +Even with "Auto Focus" turned on, the scanned image is often a bit too +blurred. Using the +.BR gimp (1) +to do a "Filter->Enhance->Sharpen" at about 40 to 60 improves the image +considerably. + +.SH TIPS (FS2710S) +.PP +Gamma corrections are done not by the scanner, but by the backend. +The scanner is always run in 12-bit mode. In "color" mode the image +data are corrected for gamma, shadow point, etc., and then truncated +to 8-bit intensities; the default gamma value is 2.0. In "raw" mode the +image data are exported without corrections as 16-bit intensities; this +mode can be recommended if extensive adjustments have to be made to a +picture (and if the frontend can handle 16-bit intensities). +.PP +Negatives are handled by simple color inversion and will require manual +removal of blue discoloration. +.PP +.SH FILES +.TP +.I /usr/lib64/sane/libsane\-canon.a +The static library implementing this backend. +.TP +.I /usr/lib64/sane/libsane\-canon.so +The shared library implementing this backend (present on systems that +support dynamic loading). +.SH ENVIRONMENT +.TP +.B SANE_DEBUG_CANON +If the library was compiled with debug support enabled, this +environment variable controls the debug level for this backend. Higher +debug levels increase the verbosity of the output. + +Example: +export SANE_DEBUG_CANON=4 + +.SH "SEE ALSO" +.BR sane\-scsi (5) +.br +.I http://www.rzg.mpg.de/~mpd/sane/doc/canon.install2700F.txt +(installation of a CanoScan 2700F) +.br +.SH AUTHOR +Helmut Koeberle, Manuel Panea, and Markus Mertinat; +.br +FB620S and FB1200S support by Mitsuru Okaniwa; +.br +FS2710S support by Ulrich Deiters +.br +Man page by Henning Meier-Geinitz (mostly based on canon.README) -- cgit v1.2.3