1. Download sane-backends-git snapshot from: http://www.sane-project.org/snapshots/
2. In a terminal, cd to the directory where you downloaded the file (perhaps ~/Downloads) cd ~/Downloads 3. Extract the file (update name as required) tar xzf sane-backends-gitXXXXXXXX.tar.gz 4. Change into the source directory (update name as required) cd sane-backends-gitXXXXXX/ 5. Apply the patch (update location as required, perhaps also ~/Downloads) cat ~/Downloads/cdr-55a.diff | patch -p1 6. Then you need to follow the instructions at http://www.sane-project.org/README.linux That will have you installing an updated version of sane-backends in /usr/local, where it has a reduced change of causing problems for your system. Let me know if you have questions. allan On Wed, Mar 16, 2016 at 6:38 AM, el-ti <t...@ewetel.net> wrote: > Thank you very much for your work. > > Unfortunately, I have no experience with patching something like this so far. > I did some research, though – seems to be quite doable. I’m familiar with the > terminal etc. As I understand this, I have to apply the diff-file on the > original file with the patch command. So far, so good – but I have no idea, > which file it is. I couldn’t figure out by looking at the diff file. > > If you could tell, on which file I have to apply this, that would be great! > Thanks! > > Tobias > > > Am 16.03.2016 um 01:33 schrieb m. allan noah: >> I have attached a patch for the sane-backends source code. This >> attempts to provide alternate color de-interlacing for your scanner. >> It does not attempt to fix any edge cropping issues. Let me know if >> you need more instructions. >> >> allan >> >> On Tue, Mar 15, 2016 at 7:59 PM, m. allan noah <kitno...@gmail.com> wrote: >> > Canon scanners often have this variable interlacing at different >> > resolutions, so I am not surprised to see this. However, this >> > particular scanner has the weirdest interlacing that canon does. If >> > you can compile from source, I can send you some patches to try. See >> > http://www.sane-project.org/README.linux >> > >> > allan >> > >> > On Tue, Mar 15, 2016 at 9:17 AM, el-ti <t...@ewetel.net> wrote: >> >> Unfortunately, yes. >> >> >> >> I uninstalled "cndrvsane-drc125" and restartet the system. The color >> >> shift is still there. >> >> >> >> And there is also the problem, that there is a 1/2 cm cut on the long >> >> edge of the scanned page (the "duplex-offset" option only handles the >> >> short edge) – but I guess this is another problem. >> >> >> >> If you need more information, do not hesitate to tell me. >> >> >> >> el-ti >> >> >> >> Am 15.03.2016 um 12:41 schrieb m. allan noah: >> >>> If you uninstall the Canon "DR-C125 Driver for Linux V1.0 (v1.0)" >> >>> software, does this color shift still happen? >> >>> >> >>> allan >> >>> >> >>> On Tue, Mar 15, 2016 at 7:37 AM, el-ti <t...@ewetel.net> wrote: >> >>>> The system is using the libsane version from the PPA: >> >>>> 1.0.26-git20160305-wily0 >> >>>> >> >>>> It was installed above the one from Ubuntu’s repositories, when I added >> >>>> the PPA. >> >>>> >> >>>> el-ti >> >>>> >> >>>> Am 15.03.2016 um 12:22 schrieb m. allan noah: >> >>>>> You have installed both sane-backends, and canon's driver? Which one >> >>>>> are you using? Assuming you are actually using sane-backends, we will >> >>>>> have to modify the code to control the color descrambling. >> >>>>> >> >>>>> allan >> >>>>> >> >>>>> On Tue, Mar 15, 2016 at 6:08 AM, el-ti <t...@ewetel.net> wrote: >> >>>>>> Hello, >> >>>>>> >> >>>>>> I have an appendix to make – maybe someone has a hint for me, why the >> >>>>>> scanner behaves really strange: >> >>>>>> >> >>>>>> Depending on the scanning resolution, the shifting on the color range >> >>>>>> is >> >>>>>> different! I used the following command to test this: >> >>>>>> >> >>>>>> scanimage --batch --source "ADF Duplex" --page-width 210 >> >>>>>> --page-height=297 -l 0 -t 0 -x 210 -y 297 --mode Color --resolution >> >>>>>> 300 >> >>>>>> >> >>>>>> Then I tried all available resolutions: 100, 150, 200, 240, 300, 400, >> >>>>>> 600. The results are strange: >> >>>>>> >> >>>>>> Scanning with 100,150,200 gives me: >> >>>>>> Blue -> Red >> >>>>>> Red -> Green >> >>>>>> Green -> Blue >> >>>>>> >> >>>>>> Scanning with 300 and 400 gives me: >> >>>>>> Blue -> Green >> >>>>>> Green -> Red >> >>>>>> Red -> Blue >> >>>>>> >> >>>>>> And scanning with 240 and 600 shows the RIGHT colors. >> >>>>>> >> >>>>>> How is that possible? And how can this problem be solved? >> >>>>>> >> >>>>>> >> >>>>>> I installed Rolf Bensch’s PPA >> >>>>>> (https://launchpad.net/~rolfbensch/+archive/ubuntu/sane-git), because >> >>>>>> it >> >>>>>> solved the back page cutting problem when scanning Duplex. (see >> >>>>>> http://permalink.gmane.org/gmane.comp.graphics.scanning.sane.devel/24903) >> >>>>>> >> >>>>>> Other than that, I only installed the Canon "DR-C125 Driver for Linux >> >>>>>> V1.0 (v1.0)". >> >>>>>> >> >>>>>> Any hint is appreciated! >> >>>>>> el-ti >> >>>>>> >> >>>>>> Am 04.03.2016 um 10:59 schrieb el-ti: >> >>>>>>> Dear Sane-developers and users, >> >>>>>>> >> >>>>>>> through this very helpful discussion >> >>>>>>> (http://permalink.gmane.org/gmane.comp.graphics.scanning.sane.devel/24903), >> >>>>>>> I managed to get my Canon Scanner working in Duplex without cutting >> >>>>>>> 1 cm >> >>>>>>> of the back page. >> >>>>>>> >> >>>>>>> Everything seems to work fine. However, I discovered a very strange >> >>>>>>> behaviour regarding the colour management: When scanning in simplex >> >>>>>>> mode, everything works fine. There is no page cutting and colours >> >>>>>>> are as >> >>>>>>> they should be. But in duplex mode, the colours are somehow shifted >> >>>>>>> on >> >>>>>>> the colour range: Blue is scanned as green, green is scanned as red, >> >>>>>>> red >> >>>>>>> is scanned as blue (for both back and front page). >> >>>>>>> >> >>>>>>> Is there an easy solution for this? Or did I forget to install >> >>>>>>> something? >> >>>>>>> >> >>>>>>> Thank you very much! >> >>>>>>> el-ti >> >>>>>>> >> >>>>>> >> >>>>>> >> >>>>>> -- >> >>>>>> sane-devel mailing list: sane-devel@lists.alioth.debian.org >> >>>>>> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel >> >>>>>> Unsubscribe: Send mail with subject "unsubscribe your_password" >> >>>>>> to sane-devel-requ...@lists.alioth.debian.org >> >>>>> >> >>>>> >> >>>>> >> >>>> >> >>> >> >>> >> >>> >> >> >> > >> > >> > >> > -- >> > "well, I stand up next to a mountain- and I chop it down with the edge >> > of my hand" >> >> >> > -- "well, I stand up next to a mountain- and I chop it down with the edge of my hand" -- sane-devel mailing list: sane-devel@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/sane-devel Unsubscribe: Send mail with subject "unsubscribe your_password" to sane-devel-requ...@lists.alioth.debian.org
