[sane-devel] positive report on Canon N670U; couple of questions

[Henning Meier-Geinitz]

Hi,

On Mon, Mar 24, 2003 at 06:23:07PM -0600, Theodore Kilgore wrote:
> Question 1: Sorry, just what do I do to make the scanner accessible to
> users, not just to root? I should know, but I forget. Do I chmod the
> device?

Yes, at least if you use /dev/usb/scanner*. If you use libusb, the
approach is different. scanimage -L shows the device you use. See man
sane-usb for details.

> Or do I setuid root the executable?

No. Never do this.

> Question 2: This may be off topic, but perhaps someone can point me in the
> right direction. I wanted to scan a picture and try to use it for
> background in X. Strangely, the preview image shows pretty much the whole
> thing, but when I open the picture with gimp I can only see part of the
> image

Which SANE frontend do you use? XSane? It will scan the area you have
selected in the preview window or with the geometry sliders. If you
use xsane in viewer mode, it will show you exactly what you have
scanned.

> . I suspect that I have the whole thing, but I am not sure. Anyway, I
> can't see it all after doing the scan, only a small piece of the original.
> This could be either a problem with gimp setup

Use the sliders and gimp's zoom feature to check. But usually gimp
shows the complete image by default.

> or with the scanner setup,
> since the last time I tried to use the scanner I wanted to zoom in on a
> small piece of the image, for testing purposes. So maybe it needs to be
> reset? If so, how?

Look at the top of the preview window. There are several ways to
select the zoom and selection.

Bye,
  Henning