All Questions
54
questions
0
votes
1
answer
40
views
Transforming ortho (.tiff) file from one epsg to other epsg
I am using GDAL to transfrom ortho from one EPSG to other EPSG.
In my case I have used EPSG:32610 which is in (m) and transformed into EPSG:2227 which is in (us-ft). I am able to transform it using ...
1
vote
1
answer
32
views
Gdalwarp assigning zero values outside input raster extents
I'm attempting to combine several GeoTIFF files into a single mosaic raster using gdalwarp:
import os
os.environ['AWS_NO_SIGN_REQUEST'] = 'YES'
file1 = "https://dea-public-data-dev.s3-ap-...
0
votes
0
answers
20
views
Produce ISEA "Icosahedral Snyder Equal Area" GEOTIFF/raster with gdalwarp
Is an icosahedral projection impossible to produce with PROJ/GDAL ?
Produce ISEA "Icosahedral Snyder Equal Area" GEOTIFF/raster with gdalwarp.
I am trying to use gdal tools to convert Plate-...
- 35
1
vote
2
answers
263
views
Reprojecting each tif located in Folder Directory using GDAL in Python [closed]
Python beginner here. I am using python to reproject a folder of rasters (.tifs). Each raster has a projection that I want to change to WGS 1984 (espg:4326). I want to use an open-source GIS library ...
1
vote
1
answer
2k
views
gdal.warp in Python script
I've a .tif file in EPSG:3426 and i'd like to convert it in UTM, zone 33, scale: meters.
In gdal I use:
gdalwarp -t_srs "+proj=utm +zone=33 +datum=WGS84 +units=m" image_input.tif image_utm....
- 31
0
votes
1
answer
759
views
GDAL: Reprojecting geotiff from LATLONG to UTM
I have a file in geotiff format, with coordinates in WGS84.
I would need to convert from WGS84 to UTM.
When I launch the code via GDAL:
gdalwarp -t_srs '+ proj = utm + zone = 37 + datum = WGS84 + ...
- 1
0
votes
0
answers
1k
views
Removing Alpha Band using GDAL results in black nodatafill
In QGIS I have saved a raster that I styled as a Rendered Image. This saves me the trouble of uploading a style on geoserver and applying the style to the geotiff. It should also decrease the file ...
- 61
0
votes
0
answers
529
views
Clipping raster using multiple shapefiles using gdal in Python
I am currently using batch process in QGIS based on clip raster by extent to clip geotiff raster layers based on different shapefiles. I am trying to clip many raster layers from the same region with ...
- 66
2
votes
0
answers
3k
views
SRTM HGT to GeoTIFF conversion using GDAL
I have (for example) SRTM-1 file n48e083.hgt with resolution 3601x3601.
What is right way to convert it to GeoTIFF?
gdal_translate -srcwin 0 0 3600 3600 -a_ullr 83 49 84 48 n48e083.hgt n48e083.tif
or
...
- 21
2
votes
1
answer
517
views
Reprojecting raster changes pixel scale (makes it darker)
I have an HH polarised SAR image as follows:
This is how it looks in QGIS in the default EPSG:4326 projection.
Now I would like to reproject this raster to ESRI:102020 (South Pole Lambert Azimuthal ...
- 379
3
votes
1
answer
751
views
GeoTIFF is stretched sideway when translating CRS to EPSG:4326 from EPSG:32654
I want to convert a GeoTIFF's coordinate reference system to EPSG:4326 from EPSG:32654. But the output image is stretched to the side.
I have tried two different methods (gdalwarp and rasterio), but ...
- 41
1
vote
0
answers
2k
views
Convert GeoTIFF to NITF
This should be very straightforward, but I can't seem to find this exact conversion scenario. I understand pixel / row / and lat and long coordinates but it seems like none of these values agree with ...
- 11
1
vote
0
answers
370
views
Using gdalwarp and gdal_translate to create a KMLSUPEROVERLAY with a trasparent background from a GeoTIFF
I attempting to create a KMZ file with an image overlay that has a transparent background. I'm using a GeoTIFF exported from the CoastWatch Utility Link to TIFF file:https://drive.google.com/file/d/...
- 11
5
votes
2
answers
13k
views
Merging rasters with gdal_merge.py
I'm trying to create a mosaic raster from two rasters. With rasterio works well but gdal_merge.py subprocess calling doesn`t work for me.
My Error is:
OSError: [WinError 193] %1 is not a valid Win32 ...
- 327
1
vote
0
answers
286
views
gdalwarp from EPSG:4326 to EPSG:3031 contains no data
I have a high resolution, optimized GeoTiff file in EPSG 4326 that I want to reproject into several other projections. Target projections EPSG:3857 (Mercator) and EPSG:3413 (Arctic stereographic) work ...
- 143