Le 08/04/2015 08:22, Guillaume Courtois a écrit :
I just committed your patch to SANE's git repository. Many thanks for
your help.
Ah, very cool. I will rebuild from GIT and check that all works well.
Hi,
Just tried your commits and it appears that I forgot one change, stupid
me :
diff --
Le 08/04/2015 11:32, Rolf Bensch a écrit :
Hi Guillaume,
Yes, but the greenish problem (if you refer to that) was really a bug
I
believe.
One scan from linux and the positive is very greenish.
Then one scan from windows and all is ok.
Then one scan from linux and all is ok too (same settings o
Hi Guillaume,
> Yes, but the greenish problem (if you refer to that) was really a bug I
> believe.
> One scan from linux and the positive is very greenish.
> Then one scan from windows and all is ok.
> Then one scan from linux and all is ok too (same settings of course).
>
After a quick investig
I just committed your patch to SANE's git repository. Many thanks for
your help.
Ah, very cool. I will rebuild from GIT and check that all works well.
Have you tried to scan with xsane? In xsane you can set the parameters
(gamma, brightness, contrast) separately for each color channel and you
Hi Guillaume,
I just committed your patch to SANE's git repository. Many thanks for
your help.
Have you tried to scan with xsane? In xsane you can set the parameters
(gamma, brightness, contrast) separately for each color channel and you
can use|create different media definitions.
What are your
Hi Rolf and the others on the list.
Sorry for not giving back news earlier. I tried to correct the problem
by myself and it took me some time.
Then I used the corrected version to be sure it was working well, and
once I had begun, I wanted to finish all the stuff I had to scan.
Well, that is
Hi Rolf,
Now that 25 = 0x01, all resolutions are ok for TPU, except that color
problem.
Fetching USB traffic from a windows machine (thanks my daughter) is what
I'm doing right now, and that in fact helps me debug. It seems to work
now, I'm just doing additional tests to be sure all works b
Hi Guillaume,
Please set me on CC when you respond to the mailing list. I missed your
last emails.
If possible, please fetch the usb traffic on a Windows machine for a tpu
scan. Then we can investigate the correct settings for the scan
parameters command.
On the other hand it seems that your sca
Hi,
Progress here ! It turns out MP990 needs Data[0x25]=0x01 like some other
scanners.
Sadly, I now have a color problem, white is greenish. Is that a gamma
table problem ?
Bye.
Le 09/11/2014 21:12, Guillaume Courtois a écrit :
Hi,
Worked a few hours again on the problem. It seems like I
Hi,
Worked a few hours again on the problem. It seems like I don't get the
correct datas from the scanner (or it's being badly post-processed) when
I'm using bigger resolutions than 300 dpi with TPU unit. Flatbed seems
all ok.
300 dpi scans do not give me underruns, but all the others do, a
Hi Rolf,
I've just seen I sent my first response to you but not the list, sorry
about that (but it contained nothing interesting in fact).
I made some progress today, color shifting seem ok and I don't have the
white columns anymore.
I'll have to give a clean patch to the list for that, but
Hi Guillaume,
If you want to dig into the source code, you can look here:
file: pixma_mp810.c
function: post_process_image_data()
It's possible that post processing image data is broken. Please check
these git commits:
b4bb0062c5cbb77c895b439b5f47e70b506305b1 (2013-01-11 16:37:00) and
1da5bcc2aa
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