Using fork or pthread makes no difference.
A sleep at the end of main() works wonders.
But not for the other exit() functions. 'scanimage -h' or 'scanimage -A'
still hang with the same issue.
I suggest to replace atexit and all exit() functions by the existing
scanimage_exit() function.
Please
Hi Rolf,
The sane backend does not provide all resolutions of the scanner:
Xsane offers 75, 150, 300, 600, 1200 and 2400 ppi.
Canon's scangear however offers 75, 100, 150, 200, 300, 400, 600 and 1200 ppi.
In order to reduce the Moiré effect it is necessary to scan with a resolution
which is
On Tue, Aug 18, 2015 at 9:06 PM, Martin wrote:
> Hi Rolf,
>
> The sane backend does not provide all resolutions of the scanner:
>
> Xsane offers 75, 150, 300, 600, 1200 and 2400 ppi.
>
> Canon's scangear however offers 75, 100, 150, 200, 300, 400, 600 and 1200
> ppi.
>
Hello Martin,
There is inf
Hi Martin,
The backend isn't responsible for any artefacts, it handles the scanned
data 1:1 to the saved image colour file. The Pixma backend only
manipulates the images for grayscale and lineart (1 bit b/w) output formats.
OK, there is some loss with image compression algorithms. If you have
tro
Hi Martin,
Gernot is right. The scanner provides only 75, 150, 300, 600, 1200 and
2400 dpi.
If you need other resolutions, you need to post process your images with
e.g. imagemagick or gimp.
Cheers,
Rolf
Am 18.08.2015 um 17:11 schrieb Gernot Hassenpflug:
> On Tue, Aug 18, 2015 at 9:06 PM, Mart
Hi Rolf,
Thank you again for this clarification. I scanned the picture with the GIMP-
plugin, so there should not be any data loss. It seams that scangear improves
the image automatically, so I will try to accomplish this with GIMP.
Cheers,
Martin
Am Dienstag, 18. August 2015, 22.50:02 schrieb
Greetings,
Having trouble getting a DocketPORT 487 going:
# env SANE_DEBUG_DLL=255 scanimage --resolution 75 >output
[sanei_debug] Setting debug level of dll to 255.
[dll] sane_init: SANE dll backend version 1.0.13 from sane-backends 1.0.25git
[dll] sane_init/read_dlld: attempting to open directo
Rolf Bensch writes:
> Using fork or pthread makes no difference.
>
> A sleep at the end of main() works wonders.
>
> But not for the other exit() functions. 'scanimage -h' or 'scanimage -A'
> still hang with the same issue.
>
> I suggest to replace atexit and all exit() functions by the existing
