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

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2answers
234 views

Some tiff not included on a vrt index

I have some tiff files and I'm trying to generate a vrt index with gdal tool, gdalbuildvrt. I run this command: gdalbuildvrt orto_index.vrt -srcnodata "0 0 0" -vrtnodata "0 0 0" *.tif and throws ...
2
votes
1answer
285 views

Black zones after tiling two tiff files

I have two Geotiff files. with one side overlapping. Each Geotiff is surrounded by a black frame. I have created an Image Pyramid with Geoserver 2.3.0 but when I try to see the layer on OpenLayers, ...
1
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0answers
332 views

Reprojecting GeoTIFFs to WGS84/UTM

I'm using libgeotiff and proj4 to read and (try to!) process GeoTIFFs. After reading the file, I want to get the corner coordinates in WGS84/UTM - but there are so many functions and parameters to try ...
0
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1answer
2k views

Help dealing with a GeoTiff-file in ArcGIS

I'm doing data-analysis on satellite data and my source data is in GeoTiff-file format. What I would like to do with the data is: 1) Open the raster data in ArcMap etc. 2) Change the coordinate ...
3
votes
2answers
719 views

How do you read GeoTiff-file in SAGA GIS Program?

I'm very new with all GIS-stuff and I got advice that SAGA GIS would be a good program to start with. I would like to read a GeoTiff-file in SAGA, but I can't find an "import file"-function x) Any ...
4
votes
1answer
341 views

How to decrease GeoTIFF file size by eliminating or negating the blackfill?

I have a 5 band, 16-bit orthorectified GeoTIFF from a satellite image that contains a significant amount of blackfill and has a file size of over 21GB. I would like to decrease the file size by ...
2
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1answer
119 views

Is JAI really that usefull for raster images on Geoserver?

I've been going back and forth with JAI for quite a while by now. I've never been really impressed with it to be honest. Is it really all that jazz that I hear people talk about? The problem with JAI ...
1
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2answers
49 views

Cannot See Georeferencer Results

I am working in QGIS 1.8.0 Lisbosa. Currently I am trying to georeference a building blueprint in a .TIF format to a Google Streets layer. After selecting four points (the corners of the building), I ...
2
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1answer
854 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 ...
2
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1answer
1k views

How to create a visualisation of the world's aeronautical flight paths?

I am a sculptor making a world globe art project, and I need a still image of the whole world’s actual air traffic routes to use as reference material. To be clear, I’m not looking for the ‘air ...
1
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1answer
102 views

Help with trying to track ice and polar bears on a map. No idea where to begin

I was asked create a little google map showing the location of Polar bears. I've been given the location data in lat-long format. For each bear I've been given a file containing the following ...
2
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1answer
826 views

Exporting climatic tabular data stored in TIF file into CSV

I have a TIF file containing tabular climatic data, described here, which I am trying to export to spreadsheet / CSV format: http://www.helioclim.org/linke/linke_helioserve.html In summary, it is a ...
6
votes
1answer
2k views

How to import GeoTIFF via postGIS into GeoServer?

As a simple test case, I'm trying to configure the software stack of OpenGeo such that I can display a GeoTIFF as an overlay to a normal map like OSM. So I perform the following steps: Create a ...
3
votes
1answer
835 views

What is difference between GeoTIFF and Esri ASCII grid file formats for SRTM data?

what is the difference between the ArcInfo ASCII format and the geotiff file format when downloading the SRTM data. I downloaded the tiles (21) for the Tibetan Plateau and imported thme into ArcMap ...
2
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1answer
425 views

Technique for splitting raster image into tiles

I have written a standalone application which renders a globe similar to GoogleEarth/WorldWind which is currently able to display raster imagery from WMS servers. The native geodesy of this ...
0
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0answers
94 views

need info on GeoTIFF projection keys

I am a programmer (not a cartographer!!) developing an application which needs to read and write GeoTIFF files. I have a number of questions about those GeoTIFF keys which are related to projections. ...
3
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2answers
3k views

How to convert .geotiff --> .tiff?

How to convert .geotiff files to .tiff files (ordinary plain images)? Basically, I have cropped the image to a rectangle of interest and knowing its left-lower location and having chosen the pixel ...
1
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1answer
146 views

Which GeoTIFF tags tell me what I want to know? [duplicate]

I'm reading some GeoTIFF files into my app using libgeotiff. After the model of the listgeo program that comes with libgeotiff, I want to extract the extents (corners) of the GeoTIFF so I can position ...
6
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2answers
531 views

How to generate TFW files for a list of images?

I have a few digital images that are not georeferenced. E.g.: Img01.tif Img02.tif ... Img99.tif On the other hand, I have a text file, which contains georeferencing information for these ...
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2answers
4k views

How to add georeferenced TIFF to AutoCAD 2010

I have a ~6GB georeferenced (from ArcGIS) .TIFF satellite image that a colleague wishes to add to AutoCAD 2010. He wants it as a base layer for digitising features from. I have searched forums but ...
3
votes
1answer
420 views

How to get Lon/Lat values from the postgis raster type column

I have a tiff raster in my PostGIS 2.0 database. I want to get the value lat/lon and extra data like temperature from the raster type column in postgis table. I want the table with columns ...
1
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1answer
296 views

How to prevent Qgis clipper to clamp nodata values?

I'm trying to crop some old georeferenced cartography in order to have a continuous map (every map has its blank borders that overlaps). Usign raster->extract->clipper and setting no value to -32768 ...
2
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1answer
539 views

Conversion from CGIAR GEOTIFFs to SRTM3 like HGTs

Im writing a C program for querying height information from SRTM data. Since reading directly GeoTIFF format is tough job, I decided to load HGT format, which serves great for the purpose. Since ...
0
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2answers
3k views

convert geotiff to simple xyz elevation file?

I have looked everywhere and can not find a tool to convert a geotiff file to a simple ascii elevation file... did I miss something? thanks for any pointers!
0
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0answers
89 views

not able to view imported .tif file in geoserver

I am using geoserver. I have imported a .tif file using postgis, which has been saved in vector type layer in geoserver. Now, whenever, I preview it, the layer gets automatically downloaded as wms ...
2
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1answer
558 views

MrSid => GeoTiff

I have a MrSid file that I would like to convert to a GeoTiff. Is there a way to do this on a Mac running Mountain Lion? I know it can be done on Windows and Linux using the LizardTech command line ...
2
votes
1answer
152 views

Is GeoServer Image Pyramid upscaling?

I have an Image Pyramid in GeoServer 2.2 RC3 (not the latests - I know, but I have other pyramids working here). The total size is around 1TB and file size is around 1-2GB for each GeoTIFF. When ...
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2answers
252 views

Is it possible to change a Geotiffs CRS?

Hi I have created a Geotiff from the Bing Aerial photography. As it is automatically in WGS 84 it inserts perfectly into QGIS, however this image is of no use to me outside of QGIS. I need to ...
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1answer
147 views

LZW compression differences between Global Mapper and gdal_translate

I compressed an GEOTIFF image with both gdal_translate and Global Mapper with LZW compression. The one Global Mapper compressed is much smaller, is almost 30% of the one gdal_translate compressed. ...
0
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2answers
710 views

Grass 7 / ArcGIS 9.3 - tiff to raster

Again a Grass 7 question. I have the output of a modelling run as matlab file, which I can export as tiff and load as geotiff. OK - now can I extract the data/convert this tiff into a raster proper? ...
4
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1answer
224 views

How to determine correlation between two databases?

I need to perform some tests and verifications on databases and/or datasets. I need for example to analyze two databases and then determine if there is enough correlation between both. My main issue ...
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2answers
1k 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 adivises ...
0
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0answers
36 views

Create .ini file from folder of geotiffs

All, I have 800 geotiffs in a folder and I want to create a .ini file for each one which looks something like this: FILENAME, SCALE, CO-ORDS, FILEPATH, FILENAME, NEW.INI Is this possible? I have ...
3
votes
3answers
2k views

GDAL_translate: converting ESRI GRID to Geotiff in batch

The Challenge: To batch convert 1000 rasters in ESRI Grid binary to Geotiff using either using a batch file or Python 2.7 without ArcGIS/Arcpy module. The Tools: Win7Pro, GDAL 1.9.2 (via OSGeo4W), ...
4
votes
1answer
649 views

Grid registration issue converting from GeoTIFF to Esri ASCII Raster format?

I've got a 3 arc second digital terrain model represented as a 32-bit GeoTIFF that looks like this: $ gdal_info gom03_v1_0.tif Driver: GTiff/GeoTIFF Files: gom03_v1_0.tif Size is 10200, 7800 ...
3
votes
3answers
929 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?
1
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0answers
179 views

Question about geotiffs

My colleague and I are georeferencing a bunch of .tif images. After each image, we'll click "update georeferencing". The resultant .tif files are different between our computers and I'm trying to ...
4
votes
1answer
369 views

Problem converting georeferenced jpgs to geotiff - image is shifted/warped

I have hundreds of georeferenced jpgs in ArcGIS 10 that I need to convert to geotiffs. I'm trying to use GDAL translate to create geotiffs from them. Everything works great except that the ...
2
votes
2answers
1k views

How to implement WCS in geoserver?

I have to add raster data in geoserver using Web Coverage Service. I have raster data in geotiff format. The problem is that the geotiff image I have added to the geoserver is using WMS not the WCS ...
1
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0answers
269 views

GeoTiff.lib: TiePoints only without ModelPixelScale do not get georeferenced in QGis

I have an image that has been georeferenced (geotiff.lib) by more than 3 tie points (x y 0 long lat 0 ...) and added following geotiff keys GTIFKeySet(gtif, GTModelTypeGeoKey, TYPE_SHORT, 1, ...
2
votes
1answer
83 views

How do I inspect, then force a geotiff to be in the format of the Natural Earth 2 map?

We are using the Natural Earth 2 map as a test file, and it's worked swimmingly. Unfortunately, our archaeologist has given us a satellite image (not distributable) in the form of a geotiff that does ...
0
votes
1answer
226 views

GeoTIFF: How to remove Internal Overview without recompression

"gdaladdo -clean" does not remove the internal overview from the file see http://trac.osgeo.org/gdal/ticket/4940 How do I remove GeoTIFF overview(s) without having to re-compress the main image.
0
votes
1answer
459 views

Format MODIS HDF to Geotiff in MRT

Am using Modis Reprojection Tool (ModisTool) on MODIS LST data (MOD11A1) to convert to GeoTiff format. When I run it I get this error message: Error: OpenGeoTIFFFILE: Opening Output Image File ...
0
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2answers
93 views

Reversing a “combine” function on a raster

I have a raster that I think was "combined" using an arcmap function. I am wondering if there is a way to extract just one raster layer from the combined dataset in order to use it separately, either ...
0
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1answer
284 views

How can I find and fix broken raster metadata using QGIS?

I have a raster (TIFF) hillshade image that I would like to use in a mapping project. However, I'm having a hard time lining it up properly in QGIS. Through a series of investigations, I have ...
2
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1answer
172 views

I have tiff file that has been modified and geotiff file with info, how do i convert my tiff to geotiff?

I have modified tiff file that i would like to turn to geotiff. My orginal geotiff has the following information that i got from gdalinfo: Driver: Gtiff/Geotiff Files: info.tiff Size is 1127, 831 ...
1
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1answer
869 views

Mosaic large dataset with R

I need to merge together 20 32 bit tiff. For that I tried ArcGis but it keeps crashing (the individual tiff are about 1GB). I need a finale Tiff in order to run some analysis and I figured that having ...
5
votes
2answers
566 views

“Poor” quality when zooming out a WMS-Layer based on GeoTiff data

i am having some issues when using the Geoserver Web Mapping Service to display GeoTIFF-Files. When zooming out (in an OpenLayers-Client or in the Geoserver Layer Preview for instance) the quality ...
4
votes
1answer
414 views

Arcgis: Programmatically export to geotiff in different scales

I am totally new to ArcGis so please bear with me using the wrong terminology. I would like to programatically export geotiff files in different scales (e.g. 1:25000, 1:50000 etc) using arcgis10. ...
0
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1answer
432 views

Why is the imported TIFF file distorted with noise in Quantum-GIS?

I've a TIFF-file. Loading the raster image into QGIS does not display correctly. (Using the Add raster layer button.) It seems to be distorted with noise. See image below: The source of the TIFF ...