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

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2
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1answer
2k views

Tiling rgba geotiffs using vrt rather than gdal_warp

I've carefully cut the collar off a set of USGS geotifs and I'd like to run through them with gdal2tiles but producing a vrt that undersands the alpha layer, or having gdal2tiles overlap two source ...
2
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1answer
343 views

gdal2tiles generates small picture inside 256x256 tile

I've used gdal2tiles for generating tiles in number of different polar projections and always experienced the same problem — strange small picture inside normal 256x256 png with the rest of space ...
2
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1answer
112 views

gdal2tiles georeferenced image as overlay not working

Ive been looking for a solution to my problem for some time now. I'm using gdal2tiles-leaflet to create tiles for my Leaflet application. The images i use are GeoTiff's with the embedded projection ...
0
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1answer
66 views

GeoTiff image not aligned after using gdal_translate and gdalwarp

I don't see what I am doing wrong. The coordinate system was assigned to the GeoTiff using the following gdal_translate command: (Usage: gdal_translate -of GTiff -a_srs EPSG#### -a_ullr upper left ...
0
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0answers
20 views

Conversion of extracted GeoTiff.tif info to decimal degree format

I need an easy way to extract the geo location data from a geotiff.tif file in decimal degree format. All the programs suggested are too complicated for me. One program was in two parts of 860 MB and ...
0
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0answers
44 views

GeoServer GeoTIFF rendering skips data between Greenwich and the Dateline

I've got a custom web application using OpenLayers3 running GeoServer (2.7.1) as a back-end. I've added a world-wide temperature GeoTIFF as a test, and it renders in a strange way. If I move the ...
2
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0answers
58 views

Convert TIFF to GeoTIFF

I have a TIFF created from a pdf using GIMP2. The co-ordinate pairs for the extents are shown in the TIFF. I need to convert this TIFF to a GeoTiff and ultimately to a shpfile. The CRS is known.
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24 views

Create compressed GeoTiff in Java

I've got a typical two-dimensional array in Java with values which represent a grid. Rows, columns, coordinate system (latlon), origin and cell size are known. I am able to export this data as ASCII ...
2
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1answer
91 views

Gdal Python Problem : Black strips in geotiff

I am trying to use GDAL (2.0.0) Python API in Blender, but I am having some difficulties. I am trying to save geotiffs for : - a 2D numpy array storing 32bits floats - a 3 channels rgb numpy array ...
0
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1answer
27 views

Get geotiff Transform from point correspondences

I am trying to find a way to get the Geo Transformation (NW corner position, pixel size and rotation) for a given tiff image. I have a tiff which I know is using some coordinate reference system (an ...
0
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1answer
48 views

Getting wrong values trying to convert to a latitude longitude system

By using listgeo I got the following information: PCS = 31468 (name unknown) If I am not mistaken this translates to DHDN / 3-degree Gauss-Kruger zone 4, and by using this site I got a proj4 ...
3
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1answer
63 views

write python ndarray to raster

I think I understood the steps to write an array to a raster file using python. however it doesn't work in my case and I don't know why. I have an array that I want to write to a Geotiff with Swiss ...
3
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1answer
67 views

QGIS GRASS raster to GeoTiff

First of all: Windows 8.1 QGIS 2.8.2 Wien My problem is that I used the GRASS module r.watershed to delineate watersheds and get flows with a DEM. It worked fine so everything is OK so far. But ...
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0answers
45 views

Understanding a typical output from a geotiff file

A typical output from geotiflib mey look like this: Geotiff_Information: Version: 1 Key_Revision: 1.0 Tagged_Information: ModelTiepointTag (2,3): 0 0 ...
2
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1answer
126 views

How to define a projection for a file with geo points?

I have a HDF file that I want to convert to tif or ENVI file. I know that the +Proj of the original file is: "+proj=cea +lon_0=0 +lat_ts=30 +ellps=WGS84 +units=m" so: gdal_translate -of "ENVI" ...
1
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1answer
80 views

Copy GeoTIFF metadata to TIFF using ArcPy

I have conducted some image manipulation on GeoTIFFs in a program and the resulting TIFFs now have no spatial information attached. Their x,y origins are (0,0). Since these processed images are of ...
0
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1answer
43 views

Raster extents incorrect for vrt when changing projection with -a_srs flag

I want to generate a .vrt in epsg:3857 from a series of raster tiles in epsg:4326, and am trying to do so in one step using gdalbuildvrt with the -a_srs flag: gdalbuildvrt -a_srs epsg:3857 ...
3
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1answer
75 views

PC software that will plot a geotagged picture location on a Geotiff

Is there any PC software (hopefully Open Source) that will plot a geotagged picture's location (drop a pin with a label of some sort) on a custom geotiff file? It would be nice if it directly loaded ...
1
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1answer
139 views

How to create GTiff from Tiff using GDAL

I have a tiff image and I would like to georeference it, and so create a Geotiff. To do that, I have to use GDAL. I use in particular, the executable store in the QGIS file (gdalwarp.exe, ...
2
votes
1answer
264 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
-1
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1answer
33 views

ASC file to GeoTIFF

I would like to convert using Arcpy an ASC file to GeoTiff but I can't find nothing about it. I tried : arcpy.ProjectRaster_management() changing .tiff to .geotiff but it didn't work.
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0answers
32 views

Jpeg image overlay embedded in KMZ to GeoTIFF

Is there a tool to convert a Jpeg image embedded into a KMZ file to a GeoTIFF file, using KMZ info for position, scale and rotation?
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0answers
47 views

Opening shapefile and Tiff layer Coordinates do not match up

I am new to using QGIS and am having a major problem. I have the UK Ordnance Survey (OS) 1:25000 raster layer in Tiff format open. When I open a shapefile or mapinfo vector layer on top of it the ...
3
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2answers
2k views

Merging many rasters using Python

I have a list of many many rasters. I want to have a simple and easy to understand script that takes this and merges it into one big mosaic. I found a similar question but the accepted answer adivices ...
0
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1answer
52 views

16Bit Tif In Geoserver

-->Is there any way to publish 16 bit raster image in geoserver 2.7.2? Then i tried to publish 16 bit raster image,but i got different color variations in different zoom levels,If any solutions for ...
1
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0answers
29 views

Pixel value of Geotiff image on Qgis different pixel value of input image

I have a binary image. I convert this image to GeoTiff image by python funntion: def exportGeotiff(filename, raster, row, col, xResolution, minLon, minLat, yResolution,geoReference): format = ...
0
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1answer
28 views

Measuring different values in latlong Geotiff whether OTFR enabled or not

I'm using a GeoTiff file in QGis that has no projection per-se (it uses lat-long coordinates) and WGS84 datum. Further it has an x pixel size of 2.40475e-07 degrees and a y pixel size of ...
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0answers
44 views

Help rendering shapefiles (.shp) to TIF with labels

I'm running into some problems here. I've basically copied the script below with minor tweaks from a few other posts here on stackexchange. When I run my code and all I get for output is a TIF that's ...
2
votes
1answer
58 views

Creating map or converting to GeoTIFF, Bufr format?

I'm trying to work with spatial data saved in WMO BUFR format (.buf extension). I need to cut data to my extent, create map and calculate spatial statistics. I'm aware that two tools are able to open ...
2
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0answers
15 views

Vanilla PHP and GeoTIFF: How to know byte address and byte length of a “strip” in an LZW-compressed GeoTiff?

I have a situation where I need to read cell values from a GeoTiff using vanilla PHP, and while I've been successful reading values from an uncompressed TIF (~800MB), I'm having difficulty reading ...
3
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2answers
2k views

How to understand GeoTIFF tags?

I'm trying to understand GeoTIFF info, but not getting far. For instance, using listgeo with one file I can get this output: Geotiff_Information: Version: 1 Key_Revision: 1.0 ...
1
vote
1answer
73 views

Erase shapfile (polygon) area from GeoTIFF

I've been reading several posts to do so and one option would be to use gdalwarp -cutline, but I would need to keep what it is NOT inside the polygon area. GDAL or any command-line tool does that? ...
1
vote
1answer
56 views

How to force GeoServer to remove, or change, NoData Value from GeoTiff?

I am trying to display vector data of state borders, downloaded from GeoServer as GeoTiff, in QGIS. By default downloaded raster looks like this: After disabling NoData value in ...
2
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2answers
1k views

Different NoData values when processing a GeoTIFF in QGIS and bringing it to ArcGIS

I'm trying to process a GeoTIFF in QGIS 1.8 using SEXTANTE and GRASS via the r.neighbors tool. I'd like to process the image, then be able to utlize it in ArcGIS. The problem I'm running into is ...
1
vote
1answer
62 views

QGIS imported geotiff rendered as perspective view, how to change to top

I've created a GeoTiff that should have GPS coordinates in it using AgiSoft. When I load it into QGIS, it renders the image in a perspective and I want to always see the image from the "top" down. ...
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0answers
75 views

Saving a TIFF file with band names

Does anyone know if it's possible to add a TIFFTAG when saving a tiff file (I'm using the C/libtiff interface) that will give a name to each band? Some kind of per-band TIFFTAG_IMAGEDESCRIPTION is ...
2
votes
2answers
1k 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 ...
0
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0answers
48 views

What are the units in GMTED2010 elevation data?

I have downloaded the GMTED2010 elevation data from http://topotools.cr.usgs.gov/gmted_viewer/viewer.htm I am merging all the files/tiles (to create a global dataset) with: gdal_merge.py There is ...
6
votes
2answers
711 views

Multi-page export in *.tiff and other image formats using Export Map?

Is there a way to export multiple maps in *.tiff using "Export Map" and setting Data Driven Pages? Because Data Drive Page work in "Export map" only with PDF.
1
vote
1answer
107 views

Where vrt files store the location of the tiles

I have thousand of tif tiles and a vrt file, generated by using gdalbuildvrt. At the moment they are at the same folder level in the system, but if I open the vrt file with Notepad I cannot find any ...
1
vote
1answer
47 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 ...
1
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0answers
69 views

Batch convert GeoTIFF's to Garmin Custom Map compatible KMZ files

I have about 600 GeoTIFF map files geo-referenced using New Zealand Transverse Mercator 2000 (NZTM2000). Each file is about 140 mb in size. I'd like to convert them to Garmin Custom Maps compatible ...
0
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0answers
102 views

Combining tiff with shapefile

I have a geotiff image with a D_WGS_1984 Datum of land cover for the continental US and I want to be able to merge it with a US counties shapefile. What is the fasters and best way to do this? My ...
0
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0answers
106 views

Create GeoTIFF from JPG and JFW files with gdal

I have a JPG image and the corresponding geospatial information on a JFW wolrd file in a ETRS89 geodesical system and UTM coordinates (EPSG:25830) 5.0000000000 0.0000000000 0.0000000000 -5.0000000000 ...
1
vote
2answers
453 views

NetCDF to Geotiff file conversion

How would I convert NetCDF files to Geotiff format? The data I am using is air temperature data that comes from the Climatic Research Institute and I want to display it on ENVI. I am not familiar with ...
4
votes
3answers
2k views

How to find lat/lon values for every pixel in a GeoTIFF file?

I want to a store GeoTIFF file pixel by pixel in the database. I need to store pixel values along with the lat/lon of that pixel on the GeoTIFF image. Is it possible to do that?
4
votes
1answer
905 views

How to show a geoTiff on an iOS application?

I'm developing an iOS application that will use offline maps. These maps are on GeoTiff format but I don't know how to do it. I've found this question: How to display a GeoTIFF on mapView but it uses ...
1
vote
1answer
74 views

GeoTiff exported using GRASS will not open in other programs

I am trying to export an image group as a multi-band GeoTiff using the r.out.gdal module in GRASS. For some reason I cannot get ArcGIS to recognize my GeoTiff exports. I have tried opening the file in ...
4
votes
1answer
2k views

GeoTiff convert to PNG with transparency?

I need to convert a GeoTIFF image to PNG format with "NoData" pixels in the original image being transparent in the output. Is there any tool particularly in ArcGIS ArcToolbox or GDAL for this ...
2
votes
1answer
69 views

How to remove compression from jpeg2000 NAIP imagery?

I downloaded a 4-band 1m spatial resolution NAIP image from Earth Explorer. The default image format is jpeg2000. You can see the trees in the attached image appear grainy, more so than what you ...