[Qgis-user] Raster edge detection - Raster -> Vector

[Paolo Cavallini]

Hi,
you can also use Orfeo ToolBox, also available in Processing.
Cheers.

On 26/09/19 00:41, Clifford Snow wrote:
> I don't know about QGIS, but OSM has a tool RapidID, developed by
> Facebook, that looks at imagery and digitizes roads. RapidID is a tool
> for mapping in OpenStreetMap. It shows missing roads. To use in New
> Zealand, you'll need to report an issue request New Zealand be added to
> the location.
> 
> You can find RapidID at https://mapwith.ai/
> 
> For a list of countries available for RapidID go to
> https://github.com/facebookmicrosites/Open-Mapping-At-Facebook/wiki/Available-Countries
> 
> To request adding your country, add an issue to their Github repository
> at https://github.com/facebookincubator/RapiD/issues/new
> 
> Best,
> Clifford
> 
> 
> 
> On Wed, Sep 25, 2019 at 3:30 PM Tony Shepherd (FarmMaps NZ)
> <tony at farmmaps.nz <mailto:tony at farmmaps.nz>> wrote:
> 
>     Hi All____
> 
>     __ __
> 
>     Is anybody out there using any tools (QGIS or other) to
>     automatically or semi-automatically digitise vector data from
>     rasters?  Roads, obvious edges of change in land use, forestry,
>     crops, water etc?____
> 
>     __ __
> 
>     I’ve tried a few plugins, can't seem to get them to work very well
>     if at all and also a few other freebie tools external to QGIS also
>     with mixed results, mostly bad.  I recall many years ago seeing a
>     really cool tool for doing just that worked from within AutoCAD, so
>     I am curious to see if such things exist in the open-source / QGIS
>     space?____
> 
>     __ __
> 
>     Cheers____
> 
>     Tony____
> 
>     __ __
> 
>     *Tony Shepherd*  *|*  GeoSpatial / Mapping Manager____
> 
>     Ph 027 435 6193  *|*  E tony at farmmaps.nz <mailto:tony at farmmaps.nz>____
> 
>     FarmMaps NZ, 3 Kerwood Place, Gore 9740____
> 
>     __ __
> 
>     FM_logo1_small (Custom)____
> 
>     __ __
> 
>     *__ __*
> 
>     ** <http://tonyshepherd8.wixsite.com/home>**
>     <https://www.wunderground.com/personal-weather-station/dashboard?ID=ISTLGORE2>*____*
> 
>     __ __
> 
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> -- 
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> OpenStreetMap: Maps with a human touch
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-- 
Paolo Cavallini - www.faunalia.eu
QGIS.ORG Chair:
http://planet.qgis.org/planet/user/28/tag/qgis%20board/