GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file.
0
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0answers
26 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 ...
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1answer
36 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 ...
0
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0answers
10 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 ...
2
votes
1answer
44 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
votes
1answer
32 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
vote
1answer
22 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 ...
1
vote
1answer
48 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
...
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0answers
20 views
Build overviews before building tiles?
Does it make sense to create overviews (with gdaladdo) for my GeoTiffs (about 12000x15000 px) before creating tiles in GeoWebCache? Does resampling affect the quality of my tiles?
2
votes
1answer
62 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
vote
1answer
49 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
votes
1answer
39 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 ...
4
votes
1answer
128 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 ...
1
vote
1answer
50 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 ...
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0answers
16 views
How to set transparent geotiff by GDAL? [duplicate]
How to set transparent geotiff by GDAL?
I get png with transparent background but i use gdal_translate - background is with.
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0answers
31 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.
...
2
votes
2answers
131 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 ...
0
votes
1answer
51 views
Which GeoTIFF tags tell me what I want to know?
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 ...
5
votes
2answers
96 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 ...
1
vote
2answers
101 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 ...
1
vote
0answers
91 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 ...
0
votes
0answers
14 views
GeoServer/Leaflet - Context menu to change raster [duplicate]
It's my first GIS project and after days of reading, it is still not clear how I should start.
I'm using GeoServer to serve GeoTiff images in WMS to a leaflet application. It works great.
Those ...
0
votes
1answer
38 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 ...
1
vote
0answers
52 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 ...
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2answers
88 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!
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0answers
36 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 ...
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0answers
17 views
view the imported .tif file on geoserver [duplicate]
I am using geoserver. Using raster2pgsql, I have imported a .tif file in database. However, now, when I'm trying to import that .tif file in geoserver using postgis, I'm unable to preview it, since ...
0
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0answers
27 views
not able to import raster data through raster2pgsql [closed]
I'm new to postgis and I'm not able to get through raster2pgsql. The problem is:
I want to import a raster (.tif) file using raster2pgsql. But after running the command:
raster2pgsql -s 4326 -I -C ...
2
votes
1answer
71 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
61 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 ...
1
vote
2answers
65 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 ...
1
vote
1answer
53 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
votes
2answers
123 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
votes
1answer
76 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 ...
1
vote
2answers
185 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 ...
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0answers
27 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 ...
2
votes
1answer
243 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), ...
3
votes
1answer
113 views
Grid registration issue converting from GeoTIFF to ARC ASCII Grid
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
...
0
votes
0answers
34 views
what different parameters can pass in GetCoverage request of WCS 1.1.1 in geoserver 2.2.4
i have to implement stretch operation on geotiff image. is there any possibility to request the stretched output using GetCoverage request by passing some parameters in the URL along with necessary ...
3
votes
3answers
141 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
vote
0answers
108 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 ...
2
votes
0answers
153 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 ...
0
votes
2answers
187 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 ...
0
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0answers
58 views
How to Draw a Point on a Geotiff in Android and Put it in the Postgresql Database?
I need to:
Open a geotiff in my phone (android) {offline)
Draw a point
Get it's coordinates (X,Y)
Fill in the data attributes (name of the point, ...)
Put the data and the coordinates in my ...
1
vote
0answers
72 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, ...
0
votes
0answers
28 views
How would I convert a microsoft sql server 2008 raster database into geotiff format?
I was given a .bak file of raster data that I need to import into a new ms sql server 2008 database.
How would I convert a microsoft sql server 2008 raster database into geotiff format?
1
vote
1answer
55 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
83 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.
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votes
1answer
167 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
...
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2answers
53 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 ...
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0answers
60 views
Converting different zoom-level GeoTiff to tms
I have several GeoTiff images I want to convert to a TMS structure of .png files.
The GeoTiff images are different scale maps of an area (1:10000, 1:5000, 1:2500) with increasing detail level.
How ...
