[sane-devel] issue with scanning at higher resolutions
m. allan noah
anoah at pfeiffer.edu
Mon Oct 24 12:54:58 UTC 2005
if you just want to scan them, only to resize them, then why not scan them
at a lower res?
wysiwg for size depends entirely on the size of your screen, and what res
you are running at. not a simple thing for sane to work with.
On Sun, 23 Oct 2005 jouthuis at dds.nl wrote:
> Well, my point was that I would like to have some kind of wysiwyg (with respect
> to _size_, that is) for scanning.
> At this moment, after scanning at 200x200 dpi I have to rescale the image
> manually to the size of the original (which is a bit tiresome when you're
> scanning dozens of documents), or file it as is (which is over 2 times as big as
> the original).
> But I must say, I've been fiddling with gqview options and I have found an
> acceptable setting for viewing these non-rescaled images with automatical
> Non-rescaled images do take a lot more disk-space, though.
> Citeren Henning Meier-Geinitz <henning at meier-geinitz.de>:
>> On Sun, Oct 16, 2005 at 07:21:23PM +0200, jouthuis at dds.nl wrote:
>>> I noticed that scanning at resolutions of, say, 200 dpi and more results in
>>> digital images of ever bigger size, to a point that it is practically
>>> to read them on screen.
>> Why? The actual size of the image on the screen is completely up to
>> you. It doesn't depend on the resolution which you used for scanning.
>> The image is scaled to whatever you want, at least with the image
>> viewers I know.
>> By the way: Which program to view images are you talking about?
>>> I'm sorry to say this, but I think this is a rather dumb situation. At work
>>> have to use Windows (sadly enough), and there changing the resolution of
>>> doesn't influence the size of the digital image: A4 stays A4 under all
>> If this were true you couldn't view a complete A4 page on a "normal"
>> screen as A4 is just to big. Fortunately, you can just select the zoom
>> factor you want.
>>> I wonder if there couldn't be any kind of automatic rescaling be built into
>>> sane-code? I can't imagine anybody being happy with things as they are now,
>>> respect to this.
>> You want to down-scale the image data? As far as I know, xsane can do
>> this. After the scan, select menu "Geometry"->"Scale".
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