GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file.

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2answers
3k views

QGIS raster GeoTIFF file covert to kml?

I have a NDVI image, which I Geo-referenced in QGIS (raster). Now I have to open the image in Google Earth - how do I convert the GeoTIFF raster file to a kml file in QGIS, so that I can open the ...
2
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0answers
111 views

tfw world file in decimal degrees?

I want to understand how "world files" are created. I found some definitions, like: http://en.wikipedia.org/wiki/World_file which says that the 2 last lines in the file are x and y coordinates of ...
0
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1answer
108 views

HDF to Geotiff conversion

can anyone tell the program code or script for converting HDF files to geotiff using MRTSwath tool? I've downloaded MODIS Files for fog estimation but i couldn't find how to process them.
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1answer
336 views

mosaicing geotiffs with gdal creates gaps due to alpha layers

I have a series of geotiffs which I'm trying to mosaic together, however when they are combined their individual alpha layers overlap sections of the other images and create gaps in the final mosaic: ...
1
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1answer
936 views

jpg to geotiff transformation with gdal_translate and gcps fails

I am trying to create a geotiff from a jpeg by inputting gcps with gdal_translate: gdal_translate -of GTiff -a_srs EPSG:4326 -gcp [1616.0 0 -121.459869532 38.5822533549] -gcp [0 0 -121.460081357 38....
0
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0answers
121 views

gdal_merge tries to create image with negative dimensions

I am trying to use gdal_merge.py to create a mosaic from a set of geotiffs, however the command fails with the error message: "ERROR 1: Attempt to create -3510x1817 dataset is illegal,sizes must be ...
0
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1answer
156 views

Can GDAL with “Kml Super Overlay” output a georeferenced geoTiff from a kmz?

I've got a kmz containing an unrefrenced jpg and a boundary box in kml. ogrinfo is happy to report (filenames redacted): INFO: Open of `Sim[...].kmz' using driver `LIBKML' successful. 1: Sim[...] ...
0
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1answer
117 views

GDAL - Specify span of elevation values for conversion to Terragen format?

I'm attempting to use the gdal tools to convert some geotiff files I have to the Terragen format. I was hoping to use either gdal_translate or gdalwarp in a similar fashion to this post. (though I ...
3
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0answers
862 views

Merge several images and Export a GeoTiff File

I have approx 500 geo-referenced images that I was hoping to merge into 1 geo-referenced file, and export it as a single geotiff file. To be used in AutoCAD Civil 3D I know I am pushing my luck and ...
2
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1answer
179 views

Adding a GeoTiff created in QGIS to Map Box

I have created a heat map in QGIS and have successfully exported it as a Geotif file. I exported the file as a Rendered Image to include my classifications and colors. However when I pull the data ...
3
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1answer
260 views

Why does projection WKT differ between osr.SpatialReference and gdalinfo

I am writing a simple geotiff using the GDAL python bindings, but the projection WKT reported by gdalinfo differs from the source. The script from osgeo import gdal, osr import numpy # Create ...
0
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0answers
208 views

How to get elevation of a coordinate given a dtm file out of a PostGIS?

What would be the best way to get elevation of a coordinate out of a PostGIS database (SQL/plpgsql) given a GeoTIFF dtm file? Importing as PostGIS Raster (which seems more costly) and calling ...
2
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2answers
145 views

Can I set up GeoServer Image Mosaic plug in to pick up images from a directory dynamically?

I have set up Image Mosaic to load GeoTIFF images from a directory and it is all good but when I add more GeoTIFF files to the directory they do not show up in the mosaic unless I recreate it. Is ...
0
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1answer
83 views

Cut a hole into a geotiff

I have two hillshading geotifs that I created using gdaldem hillshade. One covers a huge area with an OK resolution and the other has a much higher resolution for a smaller part within the huge area. ...
2
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1answer
878 views

Tools for building and exporting high resolution geotiff

I'm having some really nice raster maps in geotiff format. I would like to add some features to these maps as well as then exporting them as tiles for serving the map from a web server. Preferably I ...
0
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1answer
1k views

Import GeoTIFF into MapInfo - why “control points”, and how to batch-create TAB files?

OK, so I am largely hostile to commercial software with 'proprietary' formats, but a colleague only knows MapInfo. I have a bunch of GeoTIFFs (produced by gdal-merge of JPG/JGW-filepair hi-res aerial ...
0
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1answer
542 views

GeoTIFFS on Geoserver are served slowly, at too low resolution

I have a bunch of large, high resolution GeoTIFFs, that I am serving using GeoServer. I also have a prototype client I wrote using Leaflet. The resolution of the TIFFs is quite high, but despite that ...
1
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2answers
114 views

Geotiffs not displaying colour correctly in MapInfo

I'm trying to open geotiffs I made in ArcGIS 10.2 in MapInfo 12.5. They open in MapInfo in the right location but displayed on a blue colour scale. These should be colourful RGB images. Trying to ...
0
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1answer
77 views

ArcGIS export mosaic seamline

I created a mosaic from multiple overlapping GeoTif files in ArcMap 10.2. Than I created seamlines between the images to define which part of the scene is taken from which original image. Now, I want ...
2
votes
2answers
2k views

How to import several GeoTiff files into R?

I think that must be a "simple" way to import several Geotiff files into R instead of copy and paste n times Rfd<-readGDAL() and then save them as individual objects. I found the following code in ...
1
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2answers
239 views

Export GRASS raster as GeoTiff : nodata values exported as -nan (what happens in R?)

I am using the package raster to work with GeoTiff raster files which I expoerted from GRASS using r.out.gdal. GRASS assigned the value -nan to some raster files (type FLOAT32) for missing values. ...
2
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4answers
655 views

How to crop Geotiff image in C++ (GDAL or other possibilities)?

I am developing a code to process a geotiff image. But firsly I need to crop a geotiff image preserving its metadata (projection...) in C++. My idea it's to provide the corners and the geotiff image ...
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3answers
868 views

GDAL: How to replace NaN pixel values in GeoTIFF

I was wondering if there is a easy way (GDAL) to replace GeoTIFF pixels that are -nan with a different value (e.g. 100)? I tried gdal_calc.py -A my.tif --outfile=result.tif --calc="A-(A==-nan)*(-...
1
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1answer
364 views

Spectral mixture analysis from GeoTIFF in ENVI

I have a single GeoTIFF created from some NGB aerial photography that has been stitched in Agisoft Photoscan to create a single image of an area of heath. I would like to perform spectral mixture ...
1
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1answer
224 views

convert GTiff to AAIGrid results in cell size switch

I don't have a clue why the conversion of a tif to an asc has that kind of behavior: original tif metadata Size is 466, 427 Coordinate System is: PROJCS["ETRS89_UTM_zone_32N", ... Origin = (-1181164....
2
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5answers
374 views

LiDAR/Geo-TIFF Tree Crown Segmentation [duplicate]

I am looking for any source code that does tree crown segmentation/delaunitaitoun with LiDAR point clouds or their respective greo-TIFFs. So far I can load and view both LiDAR file and its TIFF in ...
1
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1answer
88 views

How can I display GeoTIFF image in VC++?

I need to represent a GeoTIFF file in a VC++ separate window where I can see the TIFF image and when the mouse is moved it display the geographic latitude and longitude. If I display a TIFF, before ...
1
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1answer
180 views

Adding Origin to Geotiff using Python GDAL?

Alright, so I'm getting closer to figuring this out but I'm stuck at one (that I know of) thing... how do I use GDAL to apply a known origin of a GeoTiff to another that has been processed in ...
1
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2answers
149 views

GeoTiff to ndarray

What is the most elegant way to import a multiband GeoTiff as a ndarray using Python? The most common approach I've seen is as follows: from osgeo import gdal arys = [] ds = gdal.Open('sample.tif', ...
2
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1answer
332 views

changing negative pixel spacing to positive

I have a bug with one application that does not handle negative pixel spacing values. Therefore I would like to change the negative pixel values of my images (geotif) into positive values (while ...
3
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2answers
1k views

GDAL rotate DEM

Is it possible using any of the command line GDL tools such as gdalwarp, etc to perform a rotation of DEM data - a GeoTiff for example? Anyone know how to do this? UPDATE1 After clearing out ...
1
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0answers
32 views

TIFFDirectory.getAsMetadata() is not including GeoTIFFTagSet. Any solution to this problem? — JAI

The source code appears to simply copy the TagSet List object to the IFD and then the TIFFMetadata. I don't understand where it is losing the tagset as it is in the list before the call. Anyone ...
0
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1answer
210 views

Help interpret GeoTif pixel value python gdal: connection between pixel value, RGB values and physical concentration?

I was running python script that queries a GeoTiff file at the coordinates of a centroid of blocks and as a result I got a list of pixel values, which I have trouble interpreting. When I run gdalinfo ...
1
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1answer
71 views

Geo referencing RADARSAT-1 image

I have lots of RADARSAT-1 file in GeoTiff format along with meta data where corner coordinates are available. Corner coordinates are for image portion(except the black portion). But, radar image has ...
2
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1answer
657 views

Export Geotif with transparent Background

i using Arcmap and i have a raster file, i need export this using a Geotiff file for use in Geoserver like a layer. My problem is, when i export the file always exist a color gray or white in the ...
5
votes
2answers
4k views

Obtain coordinates and corresponding pixel values from GeoTiff using python gdal and save them as numpy array

How to obtain projected coordinates as well as the actual pixel values at those coordinates from GeoTiff file and then save them into a numpy array? I have arsenci020l.tif file, and its coordinates ...
2
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0answers
203 views

Convert from GeoTiff to SVG

Basically, the title says it all: I have a customer who can only export structured map data as a GeoTiff file. My job is to convert this file into proper SVG. How can this be done? I have googled ...
2
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1answer
372 views

Colormap to grayscale map using QGIS? [duplicate]

I need to export color orthophoto map to gray scale geotiff file using free tools (like qgis) any idea? I tried qgis preview but this does not produce new geotiff file
0
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0answers
72 views

Updating/replacing GeoTiff data store on file system causes GeoServer to halt

I have a few hundred raster layers that are updated at least 4 times a day. The GeoTiff's are updated directly on disc. I'm running it as a windows service and I can sell the wrapper app logging the ...
1
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1answer
279 views

How to split a geotiff into a standard tiling scheme with Geotools in Java

I would like to tile random geotiffs to a standard grid, with a standard size of 256X256 using Geotools in java. My use case is as follows: I receive a "stream" of raster data in the form of multiband ...
1
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1answer
427 views

Best solution for tiling a geotiff?

I have some GeoTIFF files that I want to bring into the web. The spatial reference of these GeoTIFF files are multiple but are never WebMercator (EPSG:3857) and I need the web map to be in the same ...
0
votes
1answer
223 views

creating multi band raster from one GeoTiff

I'm using AgiSoft photoscan to create a photo mosaic from aerial images. The images are being captured using a camera modified for NIR and RGB data capture. I want to be able to perform spectral ...
4
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3answers
1k views

GeoTIFF world file ignored by QGIS?

I am having trouble getting geotiff rasters to get correctly placed even with a world file available. I have tracked down some discussion from 2010 that suggests that if the geotiff already has the ...
0
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1answer
676 views

How can I create a kml file from a geotiff with alpha layer

I am trying to create a kml version of a map tile using gdal_translate on a geotiff with alpha layer (link here) as follows: gdal_translate -of KMLSUPEROVERLAY input.tif output.kml however, the ...
1
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1answer
42 views

How to pick adjacent GeoTIFF files out of a set?

I have a large amount of large GeoTIFF images. Their names are arbitrary and the person that created them does not work here with us anymore. I need to do some programming experiment. How can I pick ...
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0answers
230 views

Why does this Geotools Java reprojection to WGS-84/4326 cause offset?

I am using the block of code below. I am reading in a geotif with a UTM zone projection and converting it to 4326. I am pulling out certain multiband values and creating a new raster, when I plot the ...
2
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4answers
459 views

Creating my own slippy map from GeoTIFF images

I have a Linux server, about 16 Gb of aerial photography files in GeoTIFF format and orders to set up a slippy map web application. This doesn't need to display anything from other data sources at the ...
2
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0answers
282 views

How to convert a raster file (*.tif) into a composite geodataset by using Python in ArcGIS 10.2.1

I created geotiff rasters (approximately 6000 rasters) in .tif format by using Matlab Mapping Toolbox. When I examined the properties of the data, I realised that it is 64 bit double type. I need to ...
2
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1answer
172 views

Determine spatial average of several tiff files

I am relatively new to GIS. I have a set of tiff files containing a raster each. I would like to average them, though their extents are slightly different. They each have their geospatial data ...
4
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2answers
671 views

How to create a raster tiff (dem / heightmap) from a mesh of xyz points?

I have to create a terrain heightmap(raster tif preferably) from mesh of xyz ungridded points(in geographical coordinates), I tried taking min and max of bbox of mesh and making width & height by ...