simple-scan-team team mailing list archive

[Michael Nagel <ubuntu@xxxxxxxxxxxxxxxxx>]

The 3 minute freeze: http://lists.alioth.debian.org/pipermail/sane-
devel/2012-February/029481.html

The thing is that SANE provides two ways to set the resolution:

A: "resolution" set to some value
B: "x-resolution" and "y-resolution" are set to some value

Simple Scan supports only method A.
xsane and scanimage support A and B.

Ususally this is not a problem, but the values for A are very limited
with your scanner, see the next list.

2CV67 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]

Additionally, the list of resolutions displayed in Simple Scan is not
the list of resolutions supported by the hardware. The list is static,
and you can select whatever you want. When scanning the next available
resolution is chosen. In your case the choice is limited to
300/2400/4800 as Simple Scan only supports only method A.

>From my point of view there are two things to do:
1) Simple Scan should support method A.
2) Someone with knowledge of the backend/driver should check if these lists are correct, especially if the list for method A is really that short.

-- 
You received this bug notification because you are a member of Simple
Scan Development Team, which is the registrant for Simple Scan.
https://bugs.launchpad.net/bugs/891586

Title:
  Resolution control not working

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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