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

learn more… | top users | synonyms (2)

2
votes
1answer
571 views

How can I use Android to add some additional data to geotiff images?

I would like to create an application which will use a geotiff image and add some additional data on it. All these with the Android Platform. I've done some research and found GDAL but I don't know if ...
2
votes
1answer
106 views

Global composite of radar data available?

Iowa State offers an exceptional NEXRAD composite image as GeoTIFF for the entire continental US at a reasonable resolution. Is there a comparable GeoTIFF composite updated semi-regularly available ...
1
vote
3answers
627 views

Geoserver - ImagePyramid plugin problem

I have a huge Geotiff file , and i've tiled it .. I've created the tiles using gdal_retile.py tool , but i'm getting the following error from Geoserver while linking the layer with the tiles folder : ...
5
votes
1answer
1k views

What's the best way to display a huge Aerial image using Geoserver

I have an Aerial image - Almost 1.5 GB , GEOTIFF - and i have been trying to add it as a layer in Geoserver .. Adding the layer went successful , but the performance were very bad . I tried to cache ...
1
vote
2answers
2k views

Georeferencing an image in C# with GDAL

I want to upload a jpeg or some raster image into a C# form and then on entering the latitude and longitudes I need to be able to create an GEOTIFF file of the same image. How can this be done in ...
1
vote
1answer
370 views

Black marks on edge of geotiffs

Just a quick question, are you aware of any way to crop a geotiff while maintaining the co-ordinate infomation. Im trying to crop a series of geotiffs of multi-beam data which have a black frame on ...
1
vote
1answer
441 views

Getting geotiff information into variables, not files, using gdal_translate, gdalinfo

I received an excellent answer to my question of how to get the lat/lon coordinates of the corners of a geotiff file. I used gdalinfo. The lat/lon info comes out into a file. Similarly I turned the ...
2
votes
1answer
482 views

Finding lat/lon of corners of geotiff file

I am a GIS newbie. I just recently managed to turn a GeoTIFF file into a bmp file using gdal_translate. Now I need to find the latitude/longitude coordinates of the corners. I would prefer to use ...
2
votes
2answers
364 views

Convert HMR to GeoTiff

I've got gigs of .hmr raster files from our customer and I need them to be converted into GeoTiffs or something else which can be nicely imported into Geoserver system. I wonder if I can do it with ...
2
votes
5answers
1k views

How do I turn a GeoTIFF file into a bmp file?

I need to get GeoTIFF files transformed into bmp files so that I can display them as apart of some software that I am working on. Unfortunately, I am a total newbie with GIS and really don't know much ...
3
votes
1answer
142 views

rgb2pct.py increases size of file 20 fold!

I wanted to reduce the number of bands of a tif file from 3 to 1... I used this command rgb2pct.py -n 256 fnp_braunschweig.tif fnp_bs.tif and it increased the size from 31mb to 778mb I actually ...
1
vote
2answers
2k views

How to convert GeoTIFF to grayscale and add gaussian blur?

I have a giant GeoTIFF I'd like to convert to grayscale and add a gaussian blur to. As far as I know, GDAL can strip two of the three color bands and call it grayscale, which might work, but is there ...
0
votes
1answer
5k views

ArcGIS 10 GeoTIFF Export

I'm not terribly familiar with ArcGIS in general, but I have a geodatabase (I think) containing a 3m DEM in ArcGis 9.3. I would like to have this 3m DEM in a GeoTIFF file so I can do some processing ...
1
vote
1answer
152 views

Creating GeoTiff with pre-encoded data

I have images which are already separated into JPEG compressed red, green, and blue bands. Is there a convenient way of using libgdal to pass in encoded bands without relying upon libgdal to perform ...
4
votes
2answers
1k views

How to read GeoTIFF using PHP?

My current pet project involves creating a web service that uses the CGIAR SRTM worldwide elevation data set. Each request to the service will query for elevation data from a small geographic area. ...
5
votes
2answers
1k views

How can I write a GEOTIFF in C#?

I want to upload a jpeg or some raster image into a C# form and then on entering the latitude and longitudes I need to be able to create an GEOTIFF file of the same image. How can this be done in ...
20
votes
5answers
7k views

How to determine if a tiff is georeferenced or not?

I received a tiff file from someone, but I'm not sure if it's georeferenced. Is there an easy way to check this?
9
votes
2answers
461 views

What is the correct way to convert a USGS Orthoimage from WorldImage format to tiled GeoTiff for GeoServer?

USGS provides different resolution orthoimage quadrangles in the WorldImage format (*.tif with an accompanying *.tfw world file). Some of these quadrangles can be used by GeoServer (2.1.0 - 2.1.2) by ...
2
votes
1answer
177 views

Define gdalwarp tile size

gdalwarp has -co TILES=YES (256x256 as default) Can I set different tile size? Thanks
1
vote
2answers
149 views

Can a USGS 6 inch orthoimage be given a higher resolution, like 1 foot, to improve GeoServer processing time?

The USGS orthoimage is a 6 inch resolution quadrangle that is loaded into GeoServer as a WorldImage. GeoServer has an extremely hard time processing this compared with a 1 foot resolution quadrangle. ...
3
votes
1answer
693 views

overlap two GeoTiffs to fill missing information (transparency)

I have several hundered geotiff files. Some of them (almost all of them) have black areas (irregular) on the edges. However, these black areas are covered by some other file in the file set. I read ...
5
votes
2answers
2k views

How to use NASA Digital Elevation model data?

I've heard it is possible to use NASA elevation model to determine approximate elevation at (lat;lng) point. This might be really useful for my upcoming project since Google Elevation API has weird ...
5
votes
3answers
8k views

Batch convert GeoTIFF's to KMZ files

I have about 600 GeoTIFF map files, each about 140 mb in size that I'd like to convert to KMZ files so people can download them and use them with Garmin GPS units, Google Earth, etc. Anyone know an ...
4
votes
2answers
663 views

Extract all pixels of given RGB value and render as MultiPolygons

Given a geotiff image with a colortable in it, what is the easiest way to extract each color as its own "layer or shapefile or multipolygon object"? Specifically, I am looking for a programmatic ...
2
votes
2answers
1k views

How to convert from GeoTIFF to PNG/JPG and Web Mercator in Java?

I'd like to convert raster image from (geo)tiff to an png/jpg and afterwards if it is necessary ... I'd like to convert the coordinates with help of EPSG-Codes to the OSM/Google Projection(EPSG: ...
4
votes
3answers
147 views

Is it possible to include information about a neatline in a GeoTIFF?

Is it possible to include information about a neatline in a GeoTIFF? If so, how? What software will produce them?
6
votes
3answers
16k views

Steps to creating a GeoTIFF

First off, I'd like to mention that I'm pretty new to working with GIS, so please forgive my inexperience. My situation is as follows: I'm tasked with georectifying a set of imagery and importing ...
5
votes
1answer
452 views

Why does a TIF file lose projection information when a pixel value is changed?

I am trying to change the pixel value of a tif file (containing projection information) but after the pixel value is changed it is losing projection information. I am using the Python imaging ...
1
vote
1answer
205 views

Free GeoTIFF Overlay and Tiling (i.e. Indexing) Analyser?

Has anyone come across a shareware/freeware tool for analysing the overlays and tiling (i.e the internal indexing) of GeoTIFF images? What would be excellent would be something like a GeoTIFF tuning ...
2
votes
1answer
1k 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 ...
1
vote
1answer
3k views

How to display a geotiff-image with OpenLayers at the “right place”?

I'm just starting with OpenLayers. I have a georeferenced geotiff and the associated world file. Now I want to display this image as an Overlay and google-maps as baselayer with OpenLayers. Would be ...
6
votes
2answers
1k views

Easily find centre point of a raster in ArcMap 10 document?

If I have, say, a rectangular and georeferenced raster file loaded in an ArcMap 10 document (.tiff w/ associated tfw), how do I easily find its centre point and store that point in a points vector ...
4
votes
1answer
598 views

Extract coordinates for series of georeferenced files in ArcGIS 10?

I have a series of 1900 spatially continuous images that are georeferenced. Each image is a tif file paired with a tfw file. These images are easily open and shown in ArcMap 10. However, I need a way ...
5
votes
5answers
2k views

Exporting MXD layout view to GeoTIFF?

It my be old issue, but I can't find right solution. How to produce GeoTIFF from layout view not from data view? Any simple solution?
15
votes
5answers
1k views

Speed of various raster data formats

I'm having trouble locating any discussion or comparative benchmarking of different raster file formats (e.g., for use in data analysis in R). Does anybody have any insight into why particular formats ...
3
votes
1answer
199 views

Add NZGD2000 Coordinate Reference System

I'm not sure if this is the right place to ask, but... I've been playing with GeoTools 8.0M-1, in particular trying to read some GeoTiffs. Each time, it crashes with the error No code "EPSG:2193" from ...
8
votes
3answers
800 views

Best way to manage large number of geoTiff rasters

I have around 2-3000 1-bit geoTiffs of size 11000x9400. Color 0 should be transparent, and QGis gets it wrong in the first place, so I used a .vrt file to set all the parameters in one single place. ...
1
vote
1answer
849 views

arcgis server 10 tif mxd problem

i am using arcgis server 10. first i opened arcmap and added a.tif file. then i saved it using File -> Save As as a ArcMap Document (*.mxd) file, let's say b.mxd. Now i open arccatalog and ...
0
votes
1answer
267 views

Tiling failing near the end of generating base level tiles

I have a GeoTiff file that I have created by using the command: gdal_translate -gcp <my gcp> -a_srs <my wkt file> input.tif output.tif Note that I have twelve -gcp options set on the ...
0
votes
2answers
247 views

How to realign misplaced GeoTiffs?

I have bought a few (30) GeoTiff maps from my country's Geo-department - South Africa. They all have a date in the filename and the newest one was created in 2004, I see one is dated 1977 - that old! ...
2
votes
2answers
3k views

Can WMS be used to get a local copy of raster data?

I have tried reading up on WMS on wiki and other sources but haven't managed to get my head around a couple of points. 1) Using WMS is it possible to get a local copy of the raster data (say a tiff ...
2
votes
0answers
294 views

GeoTiff specs for coordinate transformation definition

I would like to define a GeoTiff coordinate transformation by a set of GCPs only. The intention is to publish the GeoTiff as a coverage in GeoServer. However if I specify tie points only, GeoServer ...
6
votes
3answers
8k views

Creating TFW and PRJ files for folder of GeoTIFF files?

I have a folder which contains a large number of files in GeoTIFF format. I need to generate both PRJ and TFW files for each of these images. Is there some way to do this?
2
votes
1answer
625 views

GeoTIFF raster layer, c#

We have a map rendering engine (renders from MapInfo Interchange Format). This engine uses Mercator Projection. Now we have to insert a raster layer (orthophotos of a city), we have GeoTIFF files with ...
3
votes
2answers
1k views

JPG file all black when added as raster in QGIS

I add a new raster layer in the latest QGIS and select a JPG file, but it is all black. I tried adding the TIF version of the same image and that worked. What is it with the JPG, and how should I ...
4
votes
1answer
588 views

affine transformation on geotiff

I have a bunch of geotiffs stored in a PostGIS DB that i am mounting on my OpenLayers map. They all have the geoTransform information in them. I just want to know how i can mount them on my ...
7
votes
4answers
3k views

Reading GeoTiff using .NET

Is there a managed library for reading the coordinates from a geotiff file in .NET ? I know it can be done thru GDAL, but I am looking for a managed alternative.
2
votes
1answer
665 views

What are the valid values for “band” in a GeoTiff file?

What are the valid values for "band" in a GeoTiff file? I've looked through the Geotiff Spec at http://www.remotesensing.org/geotiff/spec/geotiffhome.html and I am having trouble finding information ...
2
votes
1answer
672 views

Georeferencing help (GeoTiff into MapWindow6)

I'm a newbie with MapWindow6 and I would like to figure out a couple of things. 1 - Whenever I drag and drop a GeoTiff into the map (MapWindow6) I can not see that image at its place, I mean that ...
13
votes
3answers
7k views

How do I change geotiff “no data” color to white/transparent rather than black?

I am preparing data for inclusion into a geonetwork node, where the maps are displayed via geoserver. The problem is that cells that have"no data" are displaying as black in the geotiff and I am ...