All Questions
120
questions
1
vote
0
answers
31
views
GDAL - From jp2 image with rpc file to Orthophoto geotiff and keep the image rotation
We are trying to convert a jp2 image with rpc to orthoPhoto geo tiff. We do the following process. The problem is that in the ortho.tiff file the image don't preserve it's rotation angle from the jp2 ...
- 11
0
votes
0
answers
26
views
Add transparency to raster bands where did not exist before
My original radar image is a tiff image with one single band.
Metadata:AREA_OR_POINT=Area
Image Structure Metadata:
COMPRESSION=DEFLATE
INTERLEAVE=BAND
Corner Coordinates:
Upper Left ( ...
- 1
0
votes
0
answers
56
views
Clip a NetCDF file using gdal_translate or gdalwarp
I'm trying to clip this .nc file using either gdal_translate or gdalwarp. However I don't think I'm getting the correct output. I'm able to clip the file in Python using either of the following ...
- 141
1
vote
0
answers
55
views
Creating Orthomosaic with GDAL
Platform: Windows 11
1. Aim trying to achieve: I have some very high quality multispectral data (drone multispectral imagery), from which I am trying to create an orthomosaic. My multispectral data ...
- 11
0
votes
1
answer
46
views
Convert RGB(A) GeoPDF to Grayscale GeoTIFF with GDAL
I'm using the GDAL command line tools gdal_warp and gdal_translate to convert RGB(A) GeoPDF images into GeoTIFF images. Unfortunately I found no config option that changes the RGB(A) color space to ...
- 5,857
0
votes
0
answers
32
views
Transformation of a point with GDAL
I know the place where the image was captured and I've made pixel to lat-lon correspondences (GCPs).
After running the following GDAL commands a .tif file is created.
gdal_translate -of GTiff -gcp {...
0
votes
0
answers
31
views
Translating (cropping) a GeoTIFF file to a specific extent but ending up with a different final extent
I'm trying to crop a larger GeoTIFF file to a smaller extent.
The darker GeoTIFF file in the middle has the extent I want to reproject to. I've used the following command to do the translation:
...
- 1
1
vote
2
answers
79
views
Use gdal_translate on an orthographic PNG image of the Earth centered at Lat=+50N Lon=+5E to proper orthographic GeoTIFF format
How do I gdal_translate an orthographic PNG image of the Earth centered at Lat=+50N Lon=+5E to proper GeoTIFFf format ?
I cannot work out how to specify the limits of a full disc. (diameter of Earth ...
- 35
0
votes
1
answer
79
views
GDAL: GFS weather model reprojection issues
I'm trying to reproject a grib file using gdal.
The crib file has the following,relevant, info:
GEOGCRS["Coordinate System imported from GRIB file",
DATUM["unnamed",
...
0
votes
0
answers
110
views
Error trying to translate raster image from EPSG:3857 to EPSG:3068 with GDAL with subwindow
I'm new with this GIS stuff and starting work with GDAL.
I'm using this TMS dataset and trying to project to a specific subwindow like this:
<GDAL_WMS>
<Service name="TMS">
...
0
votes
0
answers
55
views
Warp result of GDAL translate jpg to geotiff using osgeo.gdal
I am attempting to warp a geotiff created from gdal.Translate where the original file was a jpg. I first obtain the ground control points from a co-located text file. The results of gdal.Translate ...
- 111
0
votes
0
answers
67
views
GDAL warp removing half of the map
I am using gdal warp to transform a geotiff between espg:4326 to epsg:3857, I have successfully done this previously on similar images but with the current geotiff it doesn't seem to be working. I am ...
2
votes
0
answers
278
views
Speeding up WarpedVRT in rasterio (change CRS + resample)
Given a source GeoTIFF of some unknown resolution (better than the target), what is the quickest way to re-project it in-memory to the desired GSD? Masking in the input data should be preserved.
...
- 151
2
votes
1
answer
615
views
Convert image from EPSG:4326 to EPSG:3857
I'm new to GDAL and map projections, I need to convert equirectangular (EPSG:4326?) projection to "pseudo Mercator" (EPSG:3857?) projection used by 90% web-based maps (which is simple this 0/...
- 141
1
vote
1
answer
256
views
GDAL - NetCDF to colorized raster
I have a NetCDF file that is satellite imagery. I would like to convert it to a raster image, with color, using gdal on the command line.
Here is what I have so far:
gdal_translate -unscale NETCDF:&...
- 93