Remote control and offset

[Volker Schmidt]

The basic problem with the offset for basically all satellite image
providers, at least in Italy, is that it can vary from one image tile to
the next. If you look careful you may spot places where single photos are
spliced together badly.

In addition many of them are also affected by parallax errors that cannot
be handled with simple offsets.
You may also encounter that the same original satellite images are offered
by diffrent image providers with different offset and different parallax
errors. I spotted one such situation close to home. Have a look at this
multiple view
<https://mc.bbbike.org/mc/?lon=11.727554&lat=45.922483&zoom=16&num=3&mt0=esri-satellite&mt1=mapbox-satellite&mt2=google-map&mt3=bbbike-bbbike&mt-1=ol_mapnik-german&mt-1p=45>
of a spot in the Brenta valley in Northern Italy. The Esri and Mapbox
images use the same original photos, but differ in offset, and, in
addition, the Esri image is affected by massive geometry distortion (I
presume due to a bad DEM)


On Tue, 21 Jun 2022 at 11:05, severin.menard via josm-dev <
josm-dev at openstreetmap.org> wrote:

> Thanks for the answer. The idea was to the offset to be automatically
> done, as the Imagery offset database implies both the plugin to be
> installed and the contributors to remember about retrieving it (and also
> reading the Tasking Manager instructions, what many of them do not :)
>
>
> ------- Original Message -------
> Le mardi 21 juin 2022 à 10:37, Ilya Zverev <ilya at zverev.info> a écrit :
>
>
> >
> >
> > I don't see the key in the remote control options, but maybe you could
> publish the offset in the Imagery Offset Database, to be loaded in JOSM
> with a press of a button?
> >
> > https://offsets.textual.ru/
> >
> > Ilya
> >
> > On Tue, 21 Jun 2022, at 10:01, severin.menard via josm-dev wrote:
> >
> > > Hello,
> > >
> > > Is there a way to provide offset information to JOSM through the remote
> > > control flow, so that the imagery that is added has an automatic offset
> > > set?
> > >
> > > Sincerely,
> > >
> > > SeverinGeo
>
>