Public bug reported:
Binary package hint: skanlite
I'm using an Epson GT-X700 scanner with Skanlite on Kubuntu 10.04.
Skanlite supports the scanner, but scanning at more than 8 bit per
colour doesn't work. I set up Skanlite like this:
- Scan source: Transparency Unit
- Film type: Negative film
- Scan mode: Grey
- Bit depth: 16
- Scan resolution: 600 DPI
- Focus position: Focus on glass
The scan seems to work as expected, but when it has finished I get this
message:
The image data contained 16 bits per colour, but the colour depth
has been truncated to 8 bits per colour.
An 8-bit PNG file is saved, instead of a 16-bit image as I requested.
The message doesn't give any indication as to the cause nor the
solution. If it is a matter of selecting the correct file format, you
can't expect the user to know all details about PNG, BPM and all those
other three-letter acronyms. If the user has selected 16-bit and a file
format that doesn't support it, this should be reflected in the error
message, and the message should be given *before* scanning commences.
XSane works fine with the same scanner and the same settings, and
outputs 16-bit TIFF files.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: skanlite 0.4-kde4.4.0-1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Tue Jun 1 12:06:06 2010
ExecutablePath: /usr/bin/skanlite
InstallationMedia: Kubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427)
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_GB.UTF-8
LANGUAGE=en_GB
SourcePackage: skanlite
XsessionErrors:
(process:1734): GLib-CRITICAL **: g_once_init_leave: assertion
`initialization_value != 0' failed
(npviewer.bin:1954): Gdk-WARNING **: XID collision, trouble ahead
(npviewer.bin:1954): Gtk-WARNING **:
/usr/lib/gtk-2.0/2.10.0/engines/libqtcurve.so: wrong ELF class: ELFCLASS64
(npviewer.bin:1954): Gtk-WARNING **:
/usr/lib/gtk-2.0/2.10.0/engines/libqtcurve.so: wrong ELF class: ELFCLASS64
(script-fu:3188): LibGimpBase-WARNING **: script-fu: gimp_wire_read(): error
** Affects: skanlite (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug lucid
--
Higher-bit scans are reduced to 8 bit
https://bugs.launchpad.net/bugs/588231
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