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

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5
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143 views

GeoServer ImageMosaic PostGIS index update

I use GeoServer where I created an ImageMosaic storage following this manual. When I create new datastore, all *.tif files are indexed into DB (PostgreSQL with PostGIS). How can I create new index in ...
4
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112 views

can I preserve a fading alpha layer when mosaicing images with gdal?

I am mosaicing some images with gdal and would like to improve the final result by using a fading / gradual alpha layer towards the edge of each image to remove the sharp edges in the middle of the ...
4
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0answers
444 views

How to download GeoTIFFs using the REST API in GeoServer 2.2?

I am using GeoServer (Version 2.2 Git Revision f5b5c35076b52d02eb9cca3fa3232bc17b5f6d80 Build Date 19-Sep-2012 18:33 GeoTools Version 8.2 (rev 704570474295e339c08d1ca140d884f23a8a03a3)) and I've got ...
3
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0answers
224 views

Compression in GeoTiff files with GDAL

I have an output from 3th party program in tif format where gdalinfo gives the following information: Driver: GTiff/GeoTIFF Files: J:\ascend\Lufthavne - ...
2
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0answers
59 views

Upload .tif to GeoServer via Node.js

How do I upload a .tif file to my running GeoServer via Node.js? I'd like to upload a GeoTIFF to provide it as a WMS by the GeoServer. The GeoServer is responding with a 405, which I think is right ...
2
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0answers
47 views

QGIS poor Geotiff quality after importing?

I keep getting poor image quality after exporting (high DPI) from the map composer in QGIS. The original Geotiff is 254 DPI and has great image quality (smooth lines). After opening in QGIS and ...
2
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0answers
58 views

Convert TIFF to GeoTIFF

I have a TIFF created from a pdf using GIMP2. The co-ordinate pairs for the extents are shown in the TIFF. I need to convert this TIFF to a GeoTiff and ultimately to a shpfile. The CRS is known.
2
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15 views

Vanilla PHP and GeoTIFF: How to know byte address and byte length of a “strip” in an LZW-compressed GeoTiff?

I have a situation where I need to read cell values from a GeoTiff using vanilla PHP, and while I've been successful reading values from an uncompressed TIF (~800MB), I'm having difficulty reading ...
2
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70 views

tfw world file in decimal degrees?

I want to understand how "world files" are created. I found some definitions, like: http://en.wikipedia.org/wiki/World_file which says that the 2 last lines in the file are x and y coordinates of ...
2
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529 views

Merge several images and Export a GeoTiff File

I have approx 500 geo-referenced images that I was hoping to merge into 1 geo-referenced file, and export it as a single geotiff file. To be used in AutoCAD Civil 3D I know I am pushing my luck and ...
2
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0answers
154 views

Convert from GeoTiff to SVG

Basically, the title says it all: I have a customer who can only export structured map data as a GeoTiff file. My job is to convert this file into proper SVG. How can this be done? I have googled ...
2
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202 views

How to convert a raster file (*.tif) into a composite geodataset by using Python in ArcGIS 10.2.1

I created geotiff rasters (approximately 6000 rasters) in .tif format by using Matlab Mapping Toolbox. When I examined the properties of the data, I realised that it is 64 bit double type. I need to ...
2
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0answers
106 views

geoserver and openlayers select rectangle pixel values

I'm running a geoserver (2.5.x) with 1 raster file (GeoTIFF) as a layer. From my application I can access a single pixel value when clicked (through WMS), but what I'm really interested in is to get a ...
2
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0answers
135 views

How do you create either a geotiff or a .tfw in QGIS using python?

Probably I just don't understand the API documentation, I don't use object oriented programming to its full capability. I do see this has to be done from a composer object in order to automatically ...
2
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0answers
87 views

ArcGIS rectify image with embedded colormap (clr)

When rectifying a georeferenced tif image in ArcMap 10.2 the colormap gets placed into an accompanying .clr file. Is there a way to stop this behaviour and have it embedded into the tif so it is ...
2
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0answers
343 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 ...
2
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0answers
120 views

How do I present labels in raster format in ArcMap 9.3?

I'm creating a raster map of a large city in ArcMap 9.3 which will be used in a third party software. My problem is that I need to find a way to include labels of street names in my output. I have a ...
2
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167 views

How to geocorrect in qgis?

I need to fit a utm wgs84 tiff raster to a topomap in the same projection. I use GCP and it invariably fails. The first raster uncorrected rater superimpose well, the "geocorrected" raster is ...
2
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0answers
206 views

Overlay Shapefile onto Geotiff

I have a Geotiff map and I want to overlay a Shapefile onto it. Ideally I want to specify a 'nice' style for the polygons e.g. have them opaque (for now all polygons should be the same). I want to ...
2
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0answers
446 views

create geotiff from shapefiles

I need to colorized geometries from shapefiles and convert them to raster image (geotiff). I tried to use geotools's VectorToRasterProcess and ImageWorker ("d:\gis\tmp\32 27 25 w4.shp" is path to my ...
2
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215 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 ...
2
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0answers
81 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 ...
2
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321 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 ...
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28 views

Not able to view Planet Lab geotiff file

Downloaded geotiff L13-0123E-0323N.tif from #planet lab and tried to open using ArcGIS, Windows Picture viewer, and Google Earth. However, I don't see the image clearly. 120MB file must be having ...
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8 views

Using the alpha channel of a GeoTIFF in Geoserver

I want to publish a map as a WMS using GeoServer. The map consists of several layers each of which is a GeoTIFF containing RGB channels and an alpha channel. The images were edited in Photoshop and ...
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20 views

Importing TIFF to SAGA

I'm trying to import a large GeoTIFF (~1.2 GB) into SAGA GIS for processing as a grid using Import/Export - GDAL/OGR -> GDAL: Import Raster, but it keeps crashing. I'm using the 32bit OSGEO4W SAGA ...
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38 views

Write stacks of GeoTIFF image to NetCDF by chunk size

I converted GeoTIFF image stacks to NetCDF file with writing data by Index order (layer by layer) (this was a main solution). The problem is, it writes slowly (for 25 images - 1Gb takes 90 seconds). ...
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17 views

How to read in a NetCDF file in IDL and save out to a GTIFF, single routine?

Does anyone have a simple script to read in and then save out a NetCDF file to a tiff file? The files I have lat / long / and a precipitation variable, that's it. I'd like to convert a list of them in ...
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31 views

What are the geotiff limitations of geotools?

I'm trying to process globcover, which is a .tif file of 374mb. Running the following code: File tiffFile = new File("C:\\Users\\CAA\\Desktop\\test.tif"); GeoTiffReader reader = new ...
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26 views

Theory notions on exporting bufr data in geotiff format

I'm trying to export some bufr data from polar satellites/sensors like DMSP, ASCAT, ATMS etc in geotiff image. When my program rasterizes satellite data (brigthness temperature for example) by ...
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39 views

Origin line in gdalinfo output

I am a novice when it comes to GIS systems and information. But, I am having a real problem trying to wrap my brain around a specific value that gdalinfo puts out. Here is what gdalinfo shows from my ...
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26 views

Create a Geotiff with different colors

I have a geotiff raster image. I have estracted the WritableRaster, the envelope, and the gridsampleDimension I need to create a new geotiff using Geotools. GridCoverageFactory gcf = new ...
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30 views

Using .tif on data layer for Google Maps?

i have three files that i should use for a GIS application: map.aux, map.tfw, map.tif The .tif file is a "layer" that highlights some building over a map. How can i bring this information (and ...
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204 views

Reading, modifying and writing a geotiff with GDAL in python

I'm trying the learn the ropes of Remote Sensing image processing using Python GDAL bindings and numpy. As a first attempt, I'm reading a Landsat8 geotiff file, do a simple manipulation and write the ...
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45 views

Exporting a thematic raster in byte format to use with GUIDOS toolbox

I am trying to export some thematic rasters to use them with GUIDOS Toolbox (specifically the MSPA segmentation functions) - http://forest.jrc.ec.europa.eu/download/software/guidos/ GUIDOS requires ...
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27 views

Importing GeoTiff or IMG formats with Ironpython

McNeel Rhino 5 application is using IronPython 2.7, and this is the application to which I would like to import either a GeoTiff or .img formats. I googled a bit a found a couple of python modules, ...
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34 views

gdal2tiles issues with color scale between tiles

Background: I have a series of about 40 small GeoTIFFs that need to be merged together to make one large image. Each GeoTIFF has 2000 bands. I've tried using both gdal_merge and gdal_retile to pull ...
1
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0answers
24 views

Create compressed GeoTiff in Java

I've got a typical two-dimensional array in Java with values which represent a grid. Rows, columns, coordinate system (latlon), origin and cell size are known. I am able to export this data as ASCII ...
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45 views

Understanding a typical output from a geotiff file

A typical output from geotiflib mey look like this: Geotiff_Information: Version: 1 Key_Revision: 1.0 Tagged_Information: ModelTiepointTag (2,3): 0 0 ...
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47 views

Opening shapefile and Tiff layer Coordinates do not match up

I am new to using QGIS and am having a major problem. I have the UK Ordnance Survey (OS) 1:25000 raster layer in Tiff format open. When I open a shapefile or mapinfo vector layer on top of it the ...
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29 views

Pixel value of Geotiff image on Qgis different pixel value of input image

I have a binary image. I convert this image to GeoTiff image by python funntion: def exportGeotiff(filename, raster, row, col, xResolution, minLon, minLat, yResolution,geoReference): format = ...
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44 views

Help rendering shapefiles (.shp) to TIF with labels

I'm running into some problems here. I've basically copied the script below with minor tweaks from a few other posts here on stackexchange. When I run my code and all I get for output is a TIF that's ...
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75 views

Saving a TIFF file with band names

Does anyone know if it's possible to add a TIFFTAG when saving a tiff file (I'm using the C/libtiff interface) that will give a name to each band? Some kind of per-band TIFFTAG_IMAGEDESCRIPTION is ...
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68 views

Batch convert GeoTIFF's to Garmin Custom Map compatible KMZ files

I have about 600 GeoTIFF map files geo-referenced using New Zealand Transverse Mercator 2000 (NZTM2000). Each file is about 140 mb in size. I'd like to convert them to Garmin Custom Maps compatible ...
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78 views

Georeferencing reversal of image

I georeferenced a map and it posted to canvas as a mirror image of the original map. I set my project CRS before starting and also made sure to set the same SRS for the Geotiff being created and ...
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34 views

Export only one value from a one-band raster

I have a PostGIS database with a georeferenced raster, with one band which contains values from 0 to 255. I should export it to a transparent GeoTiff picture in which the only visible pixels are those ...
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136 views

Convert grey,green,blue to red,green,blue tiff

==== Edit ===== Issue tracked to strange behaviour of gdal_warp when -dstalpha is specified and source is RGBA. I had assumed that the grey,green,blue tiffs (see example below) were genuine and ...
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26 views

TIFFDirectory.getAsMetadata() is not including GeoTIFFTagSet. Any solution to this problem? — JAI

The source code appears to simply copy the TagSet List object to the IFD and then the TIFFMetadata. I don't understand where it is losing the tagset as it is in the list before the call. Anyone ...
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190 views

Why does this Geotools Java reprojection to WGS-84/4326 cause offset?

I am using the block of code below. I am reading in a geotif with a UTM zone projection and converting it to 4326. I am pulling out certain multiband values and creating a new raster, when I plot the ...
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264 views

use mapnik to read from multiple geotiffs

I set up Mapnik to custom-render a GeoTiff file. python and xml files to do so were taken from a github mapnik example, and the successful image output is a rainbow-esque .png from the original .tif. ...