[sane-devel] frame and batch mode

[m. allan noah]

On Dec 18, 2007 9:05 AM, Giuseppe Sacco
<giuseppe at eppesuigoccas.homedns.org> wrote:
> Il giorno mar, 18/12/2007 alle 08.40 -0500, m. allan noah ha scritto:
> > On 12/18/07, Giuseppe Sacco <giuseppe at eppesuigoccas.homedns.org> wrote:
> [...]
> > why does the front-end need to be involved in the movement at all? can
> > the backend not detect the additional slides and move the feeder
> > automatically? perhaps i am not picturing the mechanism correctly...
>
> You are right: the slide feeder works as you imagene, but if you have a
> negative stripe, then you have to position on a variable offset from the
> start of the stripe. The offset depends from how the camera moved it
> when shooting, or based on the way you cutted the image.
> This means that there is no fixed offset for frame, but there are
> backend that coud accept an offset as parameter.
>
> This offset require an interaction between user and backend.
>

ahh- so how does the user determine this offset? does he measure the
strip before placing it in the machine?

allan

>
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