If you want to skip the slope calculation, another alternative is to use
Multidata Arithmetic to select the "lower" topography from trace or
retrace, which is just "min(d1,d2)", where d1 and d2 are the trace and
retrace topography channels.
Best,
Chris
________________
Christian J. Long, PhD
UMD/CNST Postdoctoral Researcher
Nanofabrication Research Group
Center for Nanoscale Science and Technology
National Institute of Standards and Technology
100 Bureau Drive, Mail Stop 6203
Gaithersburg, MD 20899
(301) 975-6334 (Phone)
(301) 975-5314 (Fax)
On Mon, Dec 9, 2013 at 7:09 AM, Martin Engler <[email protected]>wrote:
> Am 09.12.2013 13:00, schrieb Daniil Bratashov:
> > It can be done with multiple data arithmetic, you should select with
> > mask m1 the data you want from first image a1, than invert this mask
> > (m2) and apply to second data (a2), than combine both with a1 * m1 +
> > a2 * m2 (or (a1 * m1 + a2 * m2) / (m1 + m2) if you have intersecting
> > masks and do not have voids that are not covered by any mask).
> >
> > http://gwyddion.net/documentation/user-guide-en/multidata.html
> >
> > WBR, Daniil Bratashov.
> >
> This works well. I did not used the arithmetics tool yet. So I did not
> get this simple idea.
>
> Thanks
>
> Martin Engler
>
> --
> Martin Engler
> Universität zu Köln
> II. Physikalisches Institut
> Zülpicher Str. 77
> 50937 Köln, Deutschland
> Telefon: +49 221 470-3658
> Telefax: +49 221 470-5178
>
>
>
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