An image mosaicing, reprojection and warping utility

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2
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3answers
37 views

Use GDAL command line to copy projections

I have two images, a georeferenced Tiff and a second Tiff without a reference. The second image is a copy of the first, but it lost its reference. Now, I want to copy the reference from the first Tiff ...
1
vote
1answer
16 views

Invert gdalwrap cutline

I have a big raster image with medium details, but for some regions I do have far more details as a seperate raster image. Now I'd like to display both of them in my map that I render with Tilemill. ...
0
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1answer
22 views

Holes between imagery tiles projected using gdalwarp

I am having the following issue when reprojecting imagery tiles using gdalwarp. These are 4096x4096 imagery tiles, which I'm gdalwarp'ing from WGS84 to a State Plane projection. When reprojected, ...
0
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0answers
15 views

Misalignement of the Corine data set after reprojection with gdalwarp, nodata not working either

I want to reproject the original corine data set with a resolution of 100x100m. I am using gdalwarp: $ gdalwarp -overwrite -s_srs EPSG:3035 -t_srs EPSG:32632 -tr 100 100 -tap -wo "SAMPLE_GRID=YES" ...
0
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1answer
16 views

data range changes when warping

When the source band having pixel values in the range of 52 and 207 is warped using the following command: gdal_warp -t_srs wgs84 -r near in_file out_file The resulted band has the pixel values in ...
1
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2answers
39 views

Cropping with GDALWarp in QGIS

I followed this post, the first answer, to clip a USGS Quad in order to remove the borders so that I can tile them. Basically it utilized the lat/long at the corners in a .txt file to import a ...
1
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0answers
26 views

GDAL Color distortion around nodata value stitching

I am trying to extract JPEGs from SID images using GDAL. I ran into a an issue where black lines were present and figured out that it was a nodata issue, so I added -src/dst/vrt nodata arguments and ...
2
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0answers
32 views

How to preserve GCP's after gdalwarp

I'm trying to figure out how I can preserve my GCP's after a gdalwarp. I need the georeferenced GCP's data, so I can calculate the Root Mean Squared Error. Is there a way to preserve this data, and ...
0
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1answer
31 views

gdalwarp won't export AAIGrid

I'm trying to use gdalwarp to reproject an ascii grid file. According to http://www.gdal.org/formats_list.html this shouldn't be a problem and indeed I can happily use gdal_translate to create grd ...
0
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0answers
80 views

Importing multiple GeoTiffs in TileMill

I am a software engineer that is very new in the geo world. So excuse my ignorance if this question seems simple or if terms I use are totally wrong. Problem: I have been tasked with taking multiple ...
1
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1answer
50 views

Can I dewarp an image using GDAL?

I have a GeoTiff image mymap.tif https://www.dropbox.com/s/51chrzv9vp9olg8/mymap.tif $ gdalinfo mymap.tif Driver: GTiff/GeoTIFF Files: mymap.tif Size is 1085, 281 Coordinate System is: GEOGCS["WGS ...
1
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1answer
27 views

How can I access the subdatasets of a grib file with gdalwarp?

How can I access the subdatasets of a grib file? I am working with NLDAS data and I want to process only the first band of the grib file. I know how to do it with HDF data but I couldn't handle it ...
0
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1answer
60 views

gdalwarp increase resolution

I currently have a 87Mb Compressed GeoTiff with a resolution of 50m. I need to interpolate this to 2.5m I have used gdalwarp to achieve this using a cubicspline, but it took 12hrs and resulted in a ...
2
votes
1answer
179 views

Re-project raster image from Mercator to Equirectangular

I have a raster image of the world map in Mercator projection, square 1:1 format. I want transform the image into an Equirectangular projection accurately. I assumed from my research that GDAL would ...
0
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0answers
16 views

Gdalwarp script misbehaving in Qgis 2.0, size increasing

My code: mask = str(shpLayer.source()) output = "C:/Users/.../crop.tif" inputt = str(rasterLayer.source()) subprocess.call(["gdalwarp","-q","-cutline",mask,"-crop_to_cutline",inputt,output], shell = ...
0
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1answer
88 views

Error with Gdal 1.10 install on Ubuntu 13.10

I've installed GDAL 1.9 then upgrade to 1.10 on Ubuntu 13.10 and then now it's error (gdalwarp can work but gdal_translate is fail) gdal_translate ERROR 1: gdal_translate was compiled against GDAL ...
0
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1answer
30 views

gdalwarp from within python script misbehaving

I'm trying to run gdalwarp from within a python script start = "gdalwarp -overwrite -ts 22 20 -r average -srcnodata 99 " input_file = filename[12:] output_file = "temp1.tif" print ...
0
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1answer
33 views

gdalwarp needs bounding box

I try to mask a raster with gdalwarp and I always get the answer: cannot compute bounding box of cutline. what is wrong with my cutline shapefile? or what requirements should it have to work?
0
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0answers
46 views

I had an error in Gdalwarp and i don't know the reason

I was trying to warp a raster using a mask and shift it before clipping but when i exectute the command bellow in Qgis/PyQt using QProcess: gdalwarp -s_srs "+proj=merc +a=6378137 +b=6356752 ...
0
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1answer
80 views

Threejs “Failed to generate a dem file using gdalwarp. gdalwarp is not installed.”

I am trying to test out the new threejs plugin for QGis and have come across this error. Failed to generate a dem file using gdalwarp. gdalwarp is not installed. I have installed the latest ...
2
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1answer
53 views

File size inflation normal with gdalwarp?

After using gdalwarp to project and align-to-grid (via -tap) a number of rasters I noticed that the output rasters were significantly larger than the original rasters. A fairly thorough web search ...
1
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0answers
27 views

Problem defining the tiling starting point

We are tiling a image datasets. However, we want to specifically define custom windows. To do this, we are using -te option during warping. The warped output is then tiled. The problem though is that ...
1
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1answer
81 views

WKT for local mine grid

I have been trying to create a WKT entry to use in gdalwarp etc. I need an affine transform from coordinates in MGA94 Zone 54 to our local mine grid. All efforts have so far failed, including using ...
0
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3answers
229 views

Leaflet.js displaying incomplete base map

I am working on a tile server with a leaflet.js UI. I have successfully created the tiles for my base map and the tiles for the overlay. The result can be seen here (zoom in further to see overlay). ...
2
votes
1answer
46 views

does Pseudo Mercator Projection causes problem while clipping rasters

I tryed to clip a Raster file using an ESRI shapefile using gdalwarp command, but i always get an empty output file or a wrong clip with wrong location. this the command bellow: gdalwarp -dstnodata ...
1
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2answers
194 views

how to georeference my png using gdal

Hello I have created my own fantasy map, I have the map in a full size png and the map broken down into tiles ( with no geo data ) I installed MS4W and tried to use it to get the georeference data ...
1
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1answer
61 views

How do I set nodata with custom color for gdal_translate and gdal2tilespy?

I start with a bunch of 1-bit geotiff files that I had to convert to 8-bit RGB tiff files to use with GDAL. Then I tried to set borders to red (content is in black and white so I can't use those) and ...
0
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0answers
35 views

How to increase the width and height of an image using gdalwarp?

I had a input tif file of size 936x736, pixel size <30.000,-30.000> and Block=936x10. When I increase the width and height to 1872x1572 using gdalwarp -ts 1872 1572 input.tif output.tif then ...
1
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1answer
152 views

GDAL tiling with a lot of MrSID files

I'm trying to generate tiles for a region with a surface of 85k km2. The data source are MrSID files (2734 files). I'm using gdal to achieve this task. It works fine with a small subset of MrSID, but ...
1
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2answers
376 views

Cropping Geotiff with gdalwarp

I downloaded a geotiff from the recently published 25m-DEM of the European Union (see: http://courses.neteler.org/eu-dem-new-digital-surface-model-at-25m/). One tile has about 5GB so I would like to ...
1
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1answer
254 views

Cutting image using gdalwarp to extent of data

I am currently generating a raster from point data and applying inverse distance algorithm. This image is then cut with : gdalwarp -cutline <<src shape file>> -crop_to_cutline -srcnodata ...
3
votes
2answers
338 views

Help making geotiff and reprojecting to EPSG:4326

My goal is to download a gif file from this webpage: http://aviationweather.gov/data/iffdp/2104.gif Then crop it to the known latlon bounds of 75N,45S,35W,70E, convert to geotif, and then project to ...
0
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0answers
94 views

Strange gdaldem hillshade artifacts

I've downloaded 9 chunks of 1 arc-second NED in IMG format from the National Map. I'm trying to create a hillshade from them. I'm using: GDAL 1.10.0, released 2013/04/24 First, I combine them and ...
1
vote
1answer
230 views

How to do geometric correction of remote sensing data in R?

My challenge is to replace most of the remote sensing commercial tools with R code (I'm teaching assistant at the University and I would like to move to open source R code to show the added values to ...
4
votes
1answer
156 views

GDALWARP and OGR2OGR / CS2CS not agreeing on transformation

I am trying to transform some data (both raster and vector) from WGS84 to a Croatian Coordinate system defined by: +proj=tmerc +lat_0=0 +lon_0=15 +k=0.9999 +x_0=5500000 +y_0=0 +ellps=bessel ...
1
vote
1answer
113 views

How to get WGS84 lat lon bounds from a VRT file

I have vrt files generated using gdalbuildvrt that reference GeoTiffs referenced using the NZTM coordinate system. Is there an easy way to determine the bounds as WGS84 latitude longitude ...
0
votes
1answer
75 views

How to consider more than one no data value in utility gdalwarp of GDAL

I have to do a bilinear interpolation on an image with two no data values, using the utility gdalwarp of GDAL (http://www.gdal.org/gdalwarp.html), so these two values don't must be considered in ...
1
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0answers
29 views

How to reproduce the gdal utility programs in Java by GDAL Java bindings [duplicate]

Can anyone tell me how can I reproduce the gdal utility programs gdal_translate, gdalwarp and gdal2tiles in java by GDAL Java bindings? Thanks!
2
votes
2answers
675 views

how to for loop a folder to batch clip rasters by polygon using python and QGIS

I am using python and QGIS 2.0. I am trying to clip rasters in a folder by one polygon feature. It's the first time for me using (let's say) "PyQGIS", I was used to arcpy before. Anyway, I don't get ...
1
vote
1answer
240 views

Cropping and transforming geoPDF with GDALwarp

I got some great advice on how to transform a geoPDF to a geoTIF on this post, which used the available downloads from this site. I would like to take it a little further and not only convert, but ...
2
votes
0answers
29 views

Workflow to assign and reproject VRT [duplicate]

I have the following workflow. generate vrt from imagelist file(with paths to tifs/grids) check if coordinate transformation is required, if so convert to target SRS Create tile using gdal_retile ...
0
votes
1answer
81 views

Need assistance setting center coordinate with GDALWARP

I'm having some issues converting my project into an MBTiles format. I'm trying to use gdalwarp to convert my main file to geotiff format, but I can't seem to get the center coordinate to how it is ...
1
vote
1answer
102 views

How to duplicate this QGIS workflow with gdal/GRASS? (reproject and crop a raster)?

I have a number of rasters (rgb images) that I want to re-project and crop. I have established a workflow for doing this in QGIS, but I'd like to do it using gdal modules, because the output is being ...
2
votes
2answers
220 views

How do I know the vertical/horizontal units of my DEM? I'm creating a slope using gdaldem

I'm using gdaldem to create a slope map. I can apply a scale. The default is 1. The notes say: Ratio of vertical units to horizontal. If horizontal unit of source DEM is degrees (e.g WGS84 ...
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0answers
400 views

How to properly convert EPSG:3857 to EPSG:4326 tif?

I tried using the answer from "Transforming EPSG:3857 to EPSG:4326" to do this but gdalinfo tells me that this didn't really work properly. Driver: GTiff/GeoTIFF Files: geo-map.tif Size is 1024, 512 ...
5
votes
1answer
153 views

How does QGIS reproject data?

Projection systems are always troubling and I cam across and issue yesterday. I created a buffer and did a select by location using that buffer, however it was producing the wrong results. It would ...
2
votes
0answers
419 views

How do I solve Gdalwarp error 'too many points failed to transform' for remapping Geostationary to Lambert conformal?

I am trying to remap from Geostationary to Lambert conformal using gdalwarp. My input data is in netcdf, and is in geographic coordinates (degrees) and I would like to output the remapped data to ...
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0answers
92 views

gdalwarp not clipping neatline properly

I have a PDF file (10mb) which contains a NEATLINE polygon in metadata. $ gdalinfo I5601_GeoPDF.pdf Driver: PDF/Geospatial PDF Files: I5601_GeoPDF.pdf Size is 5906, 3543 Coordinate System is: ...
1
vote
1answer
113 views

re-project from EPSG:4326 to polar projection

I have global georeferenced DEM tiff file in EPSG:4326 and want to re-project in EPSG:3411. I used this command: gdalwarp -s_srs EPSG:4326 -t_srs EPSG:3411 global.tif polar.tif which resulted in: ...
2
votes
1answer
759 views

GDAL2Tiles: MapTiles from BSB/KAP are Switched

As an example I have a BSB file from NOAA which is a navigational map. The map has a SRS of WGS84 and a Mercator projection. I initially translate the file from BSB format to GTiff format using the ...