if it really is trying to tell the difference between a map and a photograph
could you make a decision based on the presence of text, and therefore use an
OCR mechanism to judge if there are more than x words found in the image
-i
De : gdal-dev-boun...@lists.osgeo.org [mailto:gdal-dev-boun...@
Hi Even,
most of all depends what kind of imagery and maps you wish to classify.
If the maps are classical scanned paper maps, and you want fast
algorithm - the crosses of meter or degree grid can be the good pattern.
But if we have areal images this will not work, as such images have
crosses
Even,
Did not get it all. You want a method that allows you to tell between a
map and aerial/satellite image?
I believe the k-means algorithm would produce quite good results on maps
as is expectable that individual clusters would have low variance.
Joaquim
Hi,
I'd be interested in an algo
Hi,
I'd be interested in an algorithm to automate the classification of raster data
between maps (let's say rendering of OpenStreetMap data, or other digital
maps) one one side and aerial/satellite imagery on the other side, without
looking at metadata (bare geotiff typically). This is to help
Le jeudi 06 mars 2014 18:45:50, Jorge Arevalo a écrit :
> Hello,
>
> I'm trying to create a new table in CartoDB using the GDAL CartoDB
> driver and Python bindings. I'm getting a HTTP 400 error.
>
> This is the source code:
>
> from osgeo import ogr
> from osgeo import gdal
>
> gdal.SetConfigO
Hello,
I'm trying to create a new table in CartoDB using the GDAL CartoDB
driver and Python bindings. I'm getting a HTTP 400 error.
This is the source code:
from osgeo import ogr
from osgeo import gdal
gdal.SetConfigOption("CARTODB_API_KEY", MY_API_KEY)
drv = ogr.GetDriverByName("CartoDB")
cart
A write-only driver if I understand well ? There are not so many instances of
such drivers. I can think to the PGDump driver.
I have a write-only driver here: https://github.com/Oslandia/gdal_wasp
It's working but not complete, what I'll add in the next two weeks:
- unit tests.
- a line
