Tagged Questions

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

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2
votes
1answer
307 views

Geo Tiffs overlap in QGIS

I am trying to stitch together several GEO Tiffs that come in pairs (north -south) but when i load them into QGIS they display completely overlapped. That is the north south pair match up ok (display ...
1
vote
0answers
181 views

Applying colormap to grayscale tiff image using java

I have a gray scale tiff image.Now i want to add some pseudo colors i.e for pixels whose DN from 0-140, red color;DN from 141-255 ,blue color.Please tell me how to modify the raster table.Otherwise if ...
1
vote
1answer
193 views

gdal_retile - Out of range band requested

I'm using gdal_retile to create ImagePyramid from a set of GeoTIFF images. I'm using following command: gdal_retile.py -v -r bilinear -levels 8 -ps 2048 2048 -co "TILED=YES" -co "COMPRESS=JPEG" ...
1
vote
1answer
59 views

WCS row based security ?

I have an application where each user has individually generated geotiff files. Since the users pay for the generated geotiff, I have to make sure that the users can only see their own geotiff and not ...
2
votes
5answers
824 views

Is there a way to erase GeoTIFF header?

I've got some GeoTIFF files that have wrong bounding box extent and wrong CRS associated to. Fortunately I know the right CRS, but even associating it to the files (I've tried both with QGIS and ...
1
vote
2answers
1k views

Converting from GEOTIFF to JPEG2000

I need to convert raster from one format to another (geotiff-->jpeg2000). First I tried with very simple workspace, having input geotiff and direct to output jpeg2000, but I got error message: ...
6
votes
1answer
1k views

Creating a mask with transparent pixels in python

I have a geotiff image with pixel intensities ranging between certain values. Lets say bewteen -2 and 2 (the image is normalized). I have a certain threshold which interests me, lets sat 1. I would ...
5
votes
1answer
2k views

GeoTiff format (tile and overview confusion)

I have two questions : How does tile creation in geotiff improve performance and how will reading of tiled gtiff images be done? Adding an overview to a geotiff image means we are resampling the ...
3
votes
1answer
724 views

Serving 4 band GeoTIFF in GeoServer 2.1.4

I have an uncompressed GeoTIFF file (figure 1) with the following band information: Image Structure Metadata: INTERLEAVE=PIXEL Band 1 Block=5000x1 Type=Byte, ColorInterp=Red Band 2 Block=5000x1 ...
2
votes
1answer
450 views

creating geotiff in ArcGIS to publish in geoserver

Pls give some answer, Short question How create geotiff image (to publish using Geoserver)? Bit more information I want to publish geo-reference image in geoserver.Then i chose image format as ...
5
votes
2answers
397 views

Mass-update the projection in compressed GeoTIFF files

I have a huge set of compressed GeoTIFF files. Someone forgot to set the projection while creating the GeoTIFF files and I would like to add it now. If I use gdalwarp -t_srs source.tif ...
5
votes
3answers
2k views

How to generate colorful images using GDAL?

I am using gdal_translate -of JPEG -scale -co worldfile=yes ndvi.tiff output.jpg command to convert tiff images to jpg and resize it. But it generates only black and white images. How can I generate ...
3
votes
2answers
738 views

How to study qgis generated tiff images for water flow/resources ?

I am new to qgis. I have created tiff images from modis data using qgis. I want to study the water flow/resources from those images. As I am new to this field I don't understand how to study those ...
4
votes
1answer
1k views

Selecting and extracting data from TIFF files

I have some tiff files (2 for example) and a shapefile. The real format of the tiff files is geoTiff. I want to get the points inside the shape boundary. Each point should have 4 parameters: ...
1
vote
1answer
689 views

Using arcpy.mapping.ExportToTIFF() to create dataframe geotiff

Has anyone created a dataframe geotiff using arcpy.mapping.ExportToTIFF() with satisfactory results? My output has poor quality and the georeferencing is significantly off. This example is the ...
2
votes
1answer
188 views

How to add FP_WGS_84_IBCAO_Polar_Stereographic projection to QGIS?

I have a GeoTiff image that is projected (see below) I would like to add this projection to the list of CRS in QGIS. Can someone help me do this? Thank you very much in advance!!! Francis ...
3
votes
2answers
2k views

how to convert qgis generated tiff images into jpg/jpeg using gdal command line utilities?

I want to develop a web portal that will show the images dynamically produced by qgis . but qgis provided tiff images are too big in size and it is not possible to show it on website using image ...
0
votes
1answer
2k views

Batch convert jpeg2000 to GeoTIFF?

I need to convert approximately 3500 jpeg2000 4-band NAIP images to GeoTiff format without mosaicing. I have access to ENVI, ERDAS and Arc 10--is there an efficient way to batch convert these files ...
2
votes
1answer
2k views

GeoServer + ArcMap

I need to setup GeoServer and access GeoTIFF images in the ArcMap. I have started with installing Geoserver and created a layer with GeoTIFF. Now, what are the next steps to publish the map(using WMS) ...
2
votes
0answers
195 views

Problem with geotiff in qgis only in some PCs

Helllo I'm having some weird problem opening a 16bits geotiff with qgis. In my pc it opens and displays perfectly, but in another pc (with the same version of qgis) it displays all wrong the image ...
6
votes
2answers
998 views

Big Satellite Image Processing

Im trying to run Mort Canty's http://mcanty.homepage.t-online.de/ Python iMAD implementation on bitemporal RapidEye Multispectral images. Which basically calculates the canonical correlation for the ...
2
votes
2answers
3k views

GDAL: Convert specific RGB (GeoTIFF) color to transparent

I have an RGB GeoTIFF file and I want to convert a specific RGB colour to transparent. I would like to use GDAL for doing this, but external Python scripts are also an option (though I haven't learned ...
1
vote
2answers
227 views

Trying to identify the program which created tab file in question

i am trying to identify format or the program which created following geo tiff and tab files. Basically I am trying to update map images in our custom program which uses following tab format and ...
3
votes
1answer
780 views

Problems serving GeoTiff using GeoServer and ImageMosaic

Goal: I am trying to serve a large (1GB+) GeoTiff file using GeoServer and ImageMosaic. Process: iant have written a simple guide for this, which he proposed as an answer for a previous and similar ...
2
votes
0answers
77 views

Is there a way to link eVis with time manager in QGIS

I have a point vector layer created from way points of a GPS. I then used the eVis plugin to view geotagged photos for each of these point. I also used the time manager plugin to play through the ...
1
vote
2answers
134 views

Display Rectangular Data Grid

I'd like a Linux program which displays ASCII ArcGrid files (NxM rectangular ASCII data grids which may have either integer or floating point values). There is no practical upper or lower limit to ...
2
votes
2answers
718 views

Reading MODIS L1B into ENVI

I am working with MODIS Terra (and simultaneous ASTER) Level 1B swath data using ENVI and am having one of these "this should be easy" questions about the most direct way to get to geo-referenced ...
0
votes
1answer
329 views

Tiff raster display with polygon layer

Does any body have an idea about why *.tiff images are not displayed when added as raster layer to QGIS after adding a vector layer which has a polygon geometry? SOLVED !! In fact the tiff is ...
1
vote
0answers
435 views

Serving GroundOverlay image data from a KML file via WMS

I've got a KML file with a collection of sparsely distributed (and small) GroundOverlays, with each overlay containing a distinct LatLonQuad and Icon. I would like to serve the this image data via a ...
1
vote
1answer
726 views

Create Geotiff from Tiff using java

Respected sir/madam, I want to add geo tags to existing TIFF file and make it to geotiff file. Otherwise, for bufferedimage is it possible to add geotags to make Geotiff file. Thanks in advance...
5
votes
2answers
5k views

GeoTIFF file creation from .Tiff file

im not sure if this question is suitable for GIS I'm working on a software that displays a map, like this ![enter image description here][1] i also have some export functions which exports the the ...
2
votes
1answer
555 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
104 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
598 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
356 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
438 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
476 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
346 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
135 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
151 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
6k 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
449 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
176 views

Define gdalwarp tile size

gdalwarp has -co TILES=YES (256x256 as default) Can I set different tile size? Thanks