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Questions tagged [gdal-merge]

A utility used to merge small image tiles to create a bigger image

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 ...
DevM's user avatar
  • 11
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-...
Robbi Bishop-Taylor's user avatar
0 votes
0 answers
97 views

How to merge several Sentinel-2 images using the median for the overlapping areas?

I'm having a little bit of trouble coming with the best way to do this. I have several rasters that contain each 12 Sentinel-2 bands, not all from the same tile that I want to do some preprocessing ...
rrwork___'s user avatar
1 vote
0 answers
51 views

Setting the nodata value

I have three Sentinel 2 rasters for band 4 (named tile1_B04, tile2_B04, tile3_B04) and my area of interest is clipped by merging these 3 rasters. 2 out of 3 rasters have 0 pixels in certain portions. ...
rekha's user avatar
  • 11
0 votes
0 answers
38 views

Result of merge in QGIS is image that doesn't contains all the merged raster

I'm trying to merge ~10 rasters that I have on qgis. Each raster has 2 bands.The rasters overlap each other, and their no-data value is -9999. This is how all the rasters look like before merging (the ...
ReutKeller's user avatar
  • 2,169
0 votes
0 answers
292 views

Merging overlapping rasters - retaining maximum value using gdal

I have multiple overlapping tiffs(having 3 bands) which i want to merge using gdal/pyqgis but want to retain the maximum pixel values for the overlapping part. I tried using gdal_merge.py but it only ...
Moez's user avatar
  • 13
1 vote
1 answer
155 views

QGIS 3 greyscale on TIFF after merge raster is all washed out

I am merging 3 separate raster DEM's in BIL format. The result of the merge is a black field with a very washed out TIFF. The data is valid because I can probe it with the Identify tool and see the ...
kelleysislander's user avatar
4 votes
2 answers
716 views

Merging multiple GeoTIFF's with gdal_merge creates a solid gray GeoTIFF

I have these two GeoTIFF's: https://terrafrost.com/gdal/1.tif https://terrafrost.com/gdal/2.tif I'm trying to merge them by doing gdal_merge -o result.tif 1-dark.tif 2-dark.tif but when I do the ...
neubert's user avatar
  • 370
0 votes
0 answers
162 views

gdal_translate from .vrt doesn't reproject tiles, but .vrt has right projection

Translation of a big .vrt (tiles are .bil in EPSG:4326, .vrt has ESRI:102027) file results in a wrong raster with EPSG:4326 projection. Command here is gdal_translate -of GTiff -ot Float32 $INPATH/...
Nikolay Yasinskiy's user avatar
0 votes
0 answers
41 views

How to stack/merge geom_stars items/plots in one - in R

If I have plotted the Relative Error Maps for the Silt soil attribute for the following 4 different soil types: Cambisols, calcisols, leptosols and fluvisols that form my study case area: ggplot() + ...
Dimitris K's user avatar
0 votes
0 answers
210 views

ERROR 1: Attempt to create 5259x-3397 dataset is illegal,sizes must be larger than zero

I am attempting to merge two .tiff files using gdal_merge.py (GDAL 3.4.3, released 2022/04/22), but I'm getting the following error: ERROR 1: Attempt to create 5259x-3397 dataset is illegal,sizes ...
ametya's user avatar
  • 1
1 vote
1 answer
732 views

Merging two overlapping NetCDF files

I'm not an expert on this kind of stuff. Basically I'd like to merge two .nc files, one from GOES-R G16 and the other from GOES-R G17. The files contain the same variables and refer to the same time; ...
persson's user avatar
  • 63
0 votes
1 answer
129 views

Unable to merge TIFFs in one file using Warp and QGIS

I have three TIFFs are below which is belongs to Alaska HI Chart: First https://drive.google.com/file/d/1KllacOdKNw866doqjMcounsvofpXBgFh/view?usp=sharing Second https://drive.google.com/file/d/...
nivesh shastri's user avatar
2 votes
0 answers
528 views

for loop for merging multiple *.gpkg files in OSGeo4W Shell

I´d like to merge multiple files (geopackages) saved in a Windows folder to one *.gpkg using OSGeo4W Shell: for %f in (\*.gpkg) do (ogr2ogr 'gpkg' -update -append merged.gpkg %f -nln merged.gpkg) ...
Mapos's user avatar
  • 565
3 votes
1 answer
308 views

GDAL merge within a QGIS model designer

I am attempting to include GDAL's merge but having difficulty with the "Additional creation options" field. I would like to include both COMPRESS=LZW and TILED=YES however I cannot seem to ...
Pictory's user avatar
  • 194

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