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

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132 views

NoData specification via IEEE NaN in GeoTIFF for ArcGIS

I am a programmer exporting 32-bit floating point GeoTIFF rasters from my own application that my users need to read into ArcGIS. Unfortunately I am not an Arc user myself and have zero expertise with ...
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123 views

Decompress a LZW-compressed GeoTIFF

I have a LZW-compressed GeoTIFF file and would like to split it into several smaller regional files and change the format to png. I tried to do the spliting with gdal_translate -srcwin. I only get a ...
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1answer
211 views

How to remove black box around georeferenced grayscale image in QGIS?

i'am trying to georeference a grayscale image (*.tif) in QGIS 2.2.0 Valmeria. It is working but QGIS draws a black box around the georeferenced raster image. If i use the option set 0 transparent, not ...
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1answer
163 views

How do I generate a correlogram from a GeoTiff using R?

I'm trying to evaluate the scale of spatial autocorrelation for a bunch of rasters I have as GeoTIFFs. I'd like to be able to do this entirely using R, in order to maintain smooth workflow. What's ...
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1answer
270 views

Split Large GeoTIFF to smaller regions with python and gdal

I have quite a large GeoTIFF-file (compressed 50MB but unpacked 6GB) and want to split it into several smaller regional files. Therefor I am using python. As I am a new gdal user I do not really have ...
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1answer
81 views

Grayscale Tiff Images

I have a gray scale tiff image. I can extract the values from this tiff using numpy and make a new image with blue scale. But how can I convert it to shades of blue instead of shades of gray directly ...
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105 views

GEOTIFF not showing up in Tile Mill

All: Forgive any lapses in terminology here, although English is my native language, GIS most definitely is not, and I am totally lost. Basically, I'm trying to convert a GEOTiff to a mbtile. I ...
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3answers
580 views

Topography: How to get the x,y,z coordinates of highest or lowest point/pixel of a raster GIS?

Given a .tiff topographic raster image with mountains and deep sea, I am looking for the x,y,z specifics of the highest or lowest point. The x,y,z values being: altitude (z-coordinate) latitude ...
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142 views

How to export raster from ArcGIS for Desktop to MATLAB using Tiff without losing projection?

How do I export data from ArcGIS for Desktop and import to MATLAB using Tiff without losing projection (lat lon) information? ASCII is too slow for my application. I manage to export a raster ...
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17 views

Using the GEOTIFF Model Transform Tag

I have managed to figure out how to map Lat/Long to pixels in FAA charts that use Tie Point tags. However, I am now working with charts that use Model Transform tags. So far I am at a loss on how to ...
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1answer
77 views

How determine data type of points in geotiff DTM?

I have some DTMs in geotiff files. I need to read them in C# and I've decided to use libtiff for that purpose. After some investigations, I've found that there are tiled tiffs, so I use ReadTile ...
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1answer
55 views

Unable to show tiff “parameters”

Why this raster (tiff) does not have any values? Why I am unable to perform: doubleclick -> onechannel pseudocolor -> clafify Both rasters are downloaded from the same site: ...
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1answer
97 views

File size inflation normal with gdalwarp?

After using gdalwarp to project and align-to-grid (via -tap) a number of rasters I noticed that the output rasters were significantly larger than the original rasters. A fairly thorough web search ...
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0answers
90 views

How can I draw features on GeoTIFF in Python?

I have a set of data (coords + value) and want to turn it into a heatmap in GeoTIFF. Should I calculate pixels and set them as array, or there are shortcuts? This is what I do now: driver = ...
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18 views

save a WMS image on disk and apply a classitem (gdal commands?)

I need to save an image on disk trough WMS coloring the pixels applying a CLASSITEM (e.g. Mapserver CLASSITEM). Is it possible using gdal, if so, how? Thanks in advance, D
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1answer
36 views

Missing Layer in OpenLayers

When I try to include the "fwp layer" from geoserver 2.4 (Ubuntu 12.4 VServer) into my code it doesn't show up. But the geoserver layer preview (OL) shows the right image. The GeoExplorer preview ...
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18 views

How to Use .tif File as a separate input for neural network Toolbox

I am facing some problems in building neural networks for flood prediction. The problem i am facing is i have basically 4 attributes which i am taking into consideration for flood prediction in my ...
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1answer
133 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 ...
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1answer
30 views

Adding customised data into geotiff

Not too familiar with the geotiff format and hence would like to raise a query on whether I could embed additional information data into geotiff metadata section? Is the fields type for geotiff ...
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1answer
237 views

How to Map Latitude/Longitude to FAA Chart?

How can I map latitude/longitude to an FAA digital chart? Attached is a sample GEOTIFF. More specifically, how can I get a reference points from the digital data? Once I can get reference points, I ...
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1answer
169 views

How to get the pixels from a geotiff file in gdal python for a given bbox?

I have a GeoTIFF file in WSG 84 Projection reference (it's a GeoTIFF of SRTM). I can use python & gdal to read the whole lot of data into an array (with ReadAsArray()), but I want to only have a ...
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141 views

Unable to view GeoTiff in GeoServer layer preview

I've loaded a 265 MB world GeoTIFF image (transformed with gdal_translate command) in GeoServer. Everything seems to be ok, but layer preview is blank, although clicking in the map canvas the three ...
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2answers
2k views

How to convert a .tif with .tfw to a GeoTiff?

I have a tif image file, and a .tfw world file (created from OSM data with Mapertive). How can I (using linux command line) convert that to a GeoTIFF file? (i.e. I want to have one file, not 2). I'm ...
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1answer
101 views

Re-registering a GEOTIFF in qgis

I'm working on some images taken from a UAV over the course of a year. They are OSGB 1936 projection as is the whole project. Annoyingly they don't quite line up so I am trying to a few of the images ...
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4answers
824 views

Creating Store in GeoServer using ImageMosaic Plugin gives Error?

I am creating a GeoServer 2.4.1 store with GeoTiffs using the Image Mosaic Plugin and I get the following error when pressing the button Could not list layers for this store, an error occurred ...
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472 views

How to georeference Tiffs after manipulation in Photoshop?

I am exporting very high-res (7000x7000px) hillshades from ArcMap as tiff files. I am then doing some work in photoshop to the images. How can I easily georeference these tiffs after working on them ...
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1answer
257 views

Export map to geotiff?

I try to export my map (layout or data view doesn't really matter) to a georeferenced tiff-file (geotiff). However, this presumably easy task is proving rather difficult to accomplish. I first tried ...
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1answer
243 views

How to load Georeferenced Scanned Maps in R

I have a geo-referenced scanned Map in GeoTiff format, which I would like to load into R. My intention is to plot some vector data (points and polygons) over this map using maptools package. Is ...
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3answers
149 views

Geotiff reprojection

I am new for GIS programming. I try to change geotiff coordinate system from epsg 32635 to epsg 4326. I used the following gdal command: gdalwarp -rc -s_srs epsg:32635 -t_srs epsg:4326 -dstnodata 0 ...
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1answer
69 views

How to create a value-by-alpha map in Java?

Someone has post similar question as mine before : similar question But my objective is slightly different. I have a shape file (.shp) (a country map) I would like to write a piece of java code to ...
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159 views

How to make a geo reference image using GeoTool based on a matrix mapped data?

My ultimate objective is to make a geo reference image and make it as a raster layer to overlay the image above my openlayers map. I have a set of geo coordinate data, and each coordinate is assigned ...
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1answer
108 views

Geoserver GeoTiff Raster Layer Turns Shade Pink (Not Pink Error Tiles) [duplicate]

I have been given some geotiff files, sample of one is here I published these files as an Image Mosaic Layer in Geoserver. All is fine except that all the displayed geotifs, at all zoom levels are a ...
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42 views

No visual after loading geotiff in Qgis Dufour

I installed the latest version of QGis 2.0 for mapmaking. Before I used the 1.8 version and I had no problems in loading Geotiffs. With the latest version, it loads the same files but it doesn't show ...
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69 views

How do I use VB .net to export the ActiveView to geotiff using Arcobjects?

I want to program in vb.net and Arcobject the exporting of a map to geotiff. What I have done so far is export the map to TIFF but I am not getting Geotiff. When we do it manually we check the write ...
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1answer
68 views

How to remove/disable last row/column of SRTM GeoTIFF in QGIS?

I've started using QGIS yesterday, and one of my main reasons to use it is to apply colormapped SRTM v4 over Google aerial imagery. Everything is working fine, except that SRTM v4 elevation tiles ...
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3answers
101 views

Using gdal_merge to create a grayscale mosaic

My gdal fu is weak and I need help! ;) I'm creating a mosaic in geotiff from hundreds of ecw. I created a list of all my rasters and used this command: gdal_merge -o c:\temp\output_image.tif -q -v ...
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302 views

Is it possible to create MBtiles from a TIF?

I have a geo-referenced tif (it's really big around 1GB) and I'd like to convert it to mbtiles so I can serve them and view the map. What is the best tool to do this conversion?
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1answer
137 views

How do I find out the resolution in (centimeters per pixel) of a TIF?

I tried using GDAL and got: # gdalinfo nicholas_map_2.tif Driver: GTiff/GeoTIFF Files: nicholas_map_2.tif nicholas_map_2.tfw Size is 28799, 27875 Coordinate System is: GEOGCS["WGS 84", ...
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2answers
71 views

How can i combine the colours of one raster with values from another

I have two Tiffs with data from the same area. One is in colour and when I use the identify shows a 'color index' number (eg. 141), then Color(a,r,g,b)(eg. 255,90,255,0). The other tiff contains a ...
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1answer
163 views

How to add a DEM Band to an existing 3-band TIFF file using QGIS?

I'm quite new in the GIS business and I do not figure out how to do the following thing: I have two geoTIFF Files, one is a 3+1 bands file (RGB+alpha), the second one is a DEM geoTIFF file containing ...
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135 views

Geoserver raster (in geotiff format) becomes black when grouped by other layers in vector format?

Good day, I am a newbie in field of GIS systems. Currently I have an issue when grouping layers, raster and vector. I would like to use satellite image in geotiff format as a base layer. It works ...
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2answers
82 views

Two r.mapcalc calculations return a much bigger raster cell size than the input raster

I tried the following calculations with a GeoTiff sample, having a cell size of 25m: Calculating the togographic exposure (TOPEX) and estimating the mean topographic curvature Both, the resulting ...
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1answer
571 views

Convert multiple GeoTIFF to one KMZ

I am using GDAL to convert GeoTIFF to KMZ. I am using the following command: gdal_translate.exe -of KMLSUPEROVERLAY *.tif out.kmz If I have one TIF file in the folder, it works ok. If I have more ...
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2answers
794 views

Cropping Geotiff with gdalwarp

I downloaded a geotiff from the recently published 25m-DEM of the European Union (see: http://courses.neteler.org/eu-dem-new-digital-surface-model-at-25m/). One tile has about 5GB so I would like to ...
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1answer
2k views

How to convert a Gtiff to ASCII-Grid using QGIS gdal_translate?

Gdal_translate implemented in QGIS is often recommended for converting to Ascii-Grid. My problem is that every output which is generated from my geotiff-raster layer is binary instead of plain-text in ...
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1answer
844 views

Using Tilestache and Leaflet To Display Rasters In Native Projection

I have a collection of old Idaho state highway maps in GeoTiff format. The projection that these maps have been georeferenced in is a transverse mercator projection, called IDTM83 (Idaho Transverse ...
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2answers
257 views

Latitude - Longitude bounds from GeoTIFF info

here's the content of a GSFC-generated GOES TIFF image: GOES 13 Imager frame 66 at UTC 12:45:53.520 day 312 of 2013 Vis pixels : 9061, 22912 lines : 2845, 10152 Vis Lon : 999999,-23.1566 ...
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1answer
128 views

WMS render geotiff as a small image

My Geoserver 2.2.4 was stop working suddenly so i made a backup of Dir folder and install Geoserver 2.3.5 and replaced workspace folder with new one. Now all shapefiles is rendering correctly but ...
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1answer
68 views

while reading a tiff file filenotfoundexception

I am unable to create File object while instantiate a tiff file using TestData.file function it is giving file not found exception . But the tif file is exist on the same path file exists ...
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117 views

Touch up tool for rasters?

I was wondering if it were at all possible to manipulate/massage rasters (eg Geotiff) using Qgis plugins or Grass?? By manipulate, I mean manually smooth off interpolation artefacts, blended surface ...