[sane-devel] genesys backend - plustek opticbook 3600 pro - i'm having problems (online images)

[Stef]

On 11/12/2012 11:13, niky 45 wrote:
> so, i need to make this scan work for my library project. but it is 
> giving me so many problems.
> i'll attach you what it does, and the original image.
> http://ompldr.org/vZ25mdw (note it's converted to jpg so you can see 
> it online. te commandline was /convert -quality 70 001.pnm 001.jpg/)
>
> console output: ------------------------------------------
>  >>> scanimage -d genesys:libusb:002:003 --mode Color --format pnm 
> --swcrop=yes --resolution 200 -v >001.pnm
> [genesys] WARNING: Your scanner is not fully supported or at least
> [genesys]          had only limited testing. Please be careful and
> [genesys]          report any failure/success to
> [genesys] sane-devel at lists.alioth.debian.org 
> <mailto:sane-devel at lists.alioth.debian.org>. Please provide as many
> [genesys]          details as possible, e.g. the exact name of your
> [genesys]          scanner and what does (not) work.
> scanimage: scanning image of size 1622x2337 pixels at 24 bits/pixel
> scanimage: acquiring RGB frame
> scanimage: min/max graylevel value = 0/255
> scanimage: read 11371842 bytes in total
> ------------------------------------------------------
>
> and the second one is a (low quality) photo of it (taken with my cell 
> phone). keep in mind it gives very little contrast - the light part is 
> actually white.
> http://ompldr.org/vZ25mcg
>
> i have been looking around, and i found that channels are screwed up. 
> i mean, if you open the scanned image with gimp, and separate the 
> channels, you can see the red one is OK, but blue and green are not 
> good. i mean, too many lights and shadows.  (i can show you another 
> image if it's not clear with this one)
>
> i have two of those scanners, and both of them do the same thing. i 
> have tried with several computers, and got same results. however, with 
> other scanners, scanimage works fine. the same aplies for xsane.
>
> i don't mind getting my hands into the driver (genesys_gl841), BUT, i 
> don't know how to use usbsnoopy under windows (i tried, but it did 
> nothing), and even if it worked, i wouldn't know what to do with that 
> data.
>
> also, i found this: 
> http://old.nabble.com/Backend-for-plustek-Opticbook-3600-td26641970.html
> but i understood very little if anything.
>
> so, i need to get this scanner working, driver is doing weird things 
> (under windows, scanners work as expected), and i don't know what to 
> do with it.
>
> PS: i tried to activate debugging, but scanimage wouldn't accept a 
> --debug option, and setting just the debug vars did nothing 
> (SANE_DEBUG=255 and so on). i also tried to recompile the driver to 
> activate debug support (i'm working with packages from debian wheezy's 
> repos), but it told me this:
> --------------------------------------------
> [10:56:12] - [root at vivo:/usr/src/sane-backends-1.0.22]
> 713 >>> command ls -F
> acinclude.m4      ChangeLog-1.0.14  ChangeLog-1.0.4 configure*    
> japi/           po/             README.linux sanei/
> aclocal.m4        ChangeLog-1.0.15  ChangeLog-1.0.5 configure.in 
> <http://configure.in>  lib/ PROBLEMS        README.netbsd      testsuite/
> AUTHORS           ChangeLog-1.0.16  ChangeLog-1.0.6 COPYING       
> LICENSE         PROJECTS        README.openbsd tools/
> backend/          ChangeLog-1.0.17  ChangeLog-1.0.7 debian/       
> ltmain.sh*      README          README.os2
> ChangeLog         ChangeLog-1.0.18  ChangeLog-1.0.8 depcomp*      
> m4/             README.aix      README.solaris
> ChangeLog-1.0.0   ChangeLog-1.0.19  ChangeLog-1.0.9 doc/          
> Makefile.am     README.beos     README.unixware2
> ChangeLog-1.0.1   ChangeLog-1.0.2   compile* frontend/     
> Makefile.in     README.darwin   README.unixware7
> ChangeLog-1.0.10  ChangeLog-1.0.20  config.guess* include/      
> missing*        README.djpeg    README.windows
> ChangeLog-1.0.12  ChangeLog-1.0.21  config.log INSTALL       
> mkinstalldirs*  README.freebsd  README.zeta
> ChangeLog-1.0.13  ChangeLog-1.0.3   config.sub* install-sh*   
> NEWS            README.hp-ux    sane-backends.lsm
>
> [10:56:28] - [root at vivo:/usr/src/sane-backends-1.0.22]
> 714 >>> . configure
> bash: WARNING: you should use --build, --host, --target
> bash: WARNING: you should use --build, --host, --target
> bash: error: cannot find install-sh, install.sh, or shtool in "/bin" 
> "/bin/.." "/bin/../.."
> ------------------------------------------------------------
> i have installed build deps through aptitude.
>
>
> PS2: i know my english is not perfect. sorry for that. i  really do 
> what i can.
>
>
> -- 
> >> niky45 <<
>
>
>
>
>
>
> -- 
> >> niky45 <<
>
>
>
>
>
     Hello,

     if enabling debug traces with:

export SANE_DEBUG_GENESYS=255
export SANE_DEBUG_GENESYS_LOW=255
export SANE_DEBUG_GENESYS_GL841=255

   before running a color preview with:
scanimage -d genesys --clear-calibration --mode Color 2>preview.log 
 >preview.pnm


     doesn't work, ie the preview.log file is empty, you may consider 
recompiling SANE.
When running the 'configure' command, be sure to 'cd' to the top 
directory of the sources and run ./configure , so you get sure the 
'configure' run is the one from SANE, not another one in the PATH.
     Although OpticBook 3600 support is in SANE 1.0.22, it would be 
better to compile SANE 1.0.23. You don't have to install the compiled 
version to test it. To test you may preload the freshly compiled backend 
by doing:

export LD_PRELOAD=.libs/libsane-genesys.so

and run scanimage, xsane or whatever frontend from the 'backend' 
subdirectory.

Regards,
     Stef



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