simple-scan-team team mailing list archive

[Michael Nagel <ubuntu@xxxxxxxxxxxxxxxxx>]

I already asked this on sane-devel. Olaf's response:

> > If 2CV67's numbers are correct that answer is not completly correct.
> >
> > Epson Perfection V200 scanimage
> > --resolution 300|2400|4800dpi [300]
> > Sets the resolution of the scanned image.
> > --x-resolution 75|300|600|1200|2400|4800dpi [300]
> > Sets the horizontal resolution of the scanned image.
> > --y-resolution 100|200|300|400|600|800|1200|1800|2400|3600|4800|6600|9600dpi [300]
> >
> > The intersection would be 300|600|1200|2400|4800 but 600 and 1200 are
> > missing from the list generated by scanimage.
Good catch. My explanation was not quite complete.

If you try the help with --source="Transparency Unit", you should see
slightly different lists of --x-resolution and y-resolution values. The
list of --resolution values is the intersection of these lists and those
above.

Hope this helps,
Olaf Meeuwissen

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https://bugs.launchpad.net/bugs/891586

Title:
  resolution control: setting x/y resolution independently

Status in Simple Scan:
  Triaged

Bug description:
  Details in my Ubuntu Forum thread: 
  http://ubuntuforums.org/showthread.php?t=1648771
  Quote:
  "Firstly - congratulations for Simple Scan, which lives up to its name admirably!
  Xsane is no doubt wonderfully competent, but far too complicated for casual use.
  But I am having a problem with Simple Scan, in that I can't seem to get selected resolutions to have any effect.
  A typical A4 mainly-text document I am playing with, ends up as:
  165K when scanned & saved as text pdf at 75/150/300 or 600dpi...
  1.5MB when scanned & saved as text jpg at 75-600dpi
  2.2MB when scanned & saved as photo pdf or jpg at 75-600dpi.
  My Epson V200 scanner allows normal resolution selection with Xsane or with Epson's iscan application.
  Thanks for any suggestions!" - unquote.

  I started that thread in December 2010 & still have the same problem today.
  As a summary - the resolution control has absolutely no effect on the results.
  No error messages (unless I try 2400dpi) & nothing in simple-scan --debug >simple-scan.log
  I now have Simple Scan 2.32.0.1-0Ubuntu2 in Ubuntu 11.04.
  The scanner is an Epson Perfection V200 Photo & has normal resolution selection in XSane & Iscan.
  Thanks!

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