All Questions
Tagged with vectorization geotiff-tiff
7
questions
0
votes
1
answer
271
views
QGIS .tiff to shapefiles by extracting colours
So I have the following raster file:
I would like to edit it so that I export all green, blue or purple areas as a single, new .tiff. Afterwards I would make a vectorization to be able to process the ...
- 140
0
votes
1
answer
763
views
How to transfer simple GeoTiff data into a database
I'm trying to turn a relatively simple GeoTIFF file into a dataset readable by an API.
End goal:
Build a GET method for an API like
/search_by_coordinates?lat=-73.1221&lng=44.4924 and get ...
1
vote
0
answers
430
views
Draw polygon (vectorize) raster based on same colored pixels -- getting bad polygons
So, I have a TIF georeferenced map and a rather messy shape that I need to digitize. It is green but has a lot of holes in it that are light green color. So, I want to capture all green pixels and ...
1
vote
0
answers
153
views
QGIS does not polygonize [closed]
I have a .tif which I want to have polygonized. I take the Raster/Conversion/Raster to Polygon. QGIS 3.12 starts the process but never ends (once I waited half an hour). I maybe don't see a mistake.
...
- 85
1
vote
1
answer
873
views
Using TIFF file in Intersect tool of ArcMap
I am attempting to do some geoprocessing with a CSV file and a TIFF file (trying to use the Intersect tool), but am experiencing some trouble with it. I can't seem to be able to input the TIFF file as ...
- 11
0
votes
1
answer
200
views
Load GeoTIFF band value into PostGIS
I am trying to upload a geoTIFF file into my PostGIS database. Using raster2psql, it works.
raster2pgsql -I -C -M *.tif -F -t auto mytablename > mytable.sql
psql -d mydatabase -f mytable.sql
...
- 323
8
votes
1
answer
9k
views
Selecting and extracting data from TIFF files
I have some tiff files (2 for example) and a shapefile.
The real format of the tiff files is geoTiff.
I want to get the points inside the shape boundary. Each point should have 4 parameters: geom(...
- 471