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

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14
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2answers
2k views

How to reproject raster from 0 360 to -180 180 with cutting 180 meridian

I have a geotiff raster image that has a coordinate system with longtitudes from 0 to 360. The horizontal center of the image is 180 longtitude. See image below: I want to transform it to EPSG:4326 ...
7
votes
5answers
13k 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 ...
8
votes
1answer
4k 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 ...
0
votes
2answers
8k 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!
5
votes
5answers
3k 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?
26
votes
7answers
9k views

Should GDAL be set to produce GeoTIFF files with compression? Which algorithm should be used?

I have a folder of GIS data that consists mainly of GeoTIFF files. The whole set weighs in at about 1.2 GB. I noticed that if I pack the contents into a tarball, it smashes down to about 82 MB. I ...
7
votes
1answer
3k views

How to get GDAL to create statistics for GTiff in Python

I regularly create my own GeoTIFF rasters with GDAL in Python, e.g.: from osgeo import gdal from numpy import random data = random.uniform(0, 10, (300, 200)) driver = gdal.GetDriverByName('GTiff') ds ...
8
votes
2answers
249 views

Convert a geotiff web-mercator into an azimuthal equidistant projection

I have a geo-referenced tiff file, in the web-mercator projection; and I need it converted to an azimuthal equidistant projection. I'm new to GIS and can't figure out how to do this. I'm open to ...
6
votes
2answers
1k 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 ...
5
votes
2answers
8k 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 ...
1
vote
1answer
1k 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 ...
7
votes
3answers
12k 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?
13
votes
3answers
10k 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 ...
7
votes
3answers
733 views

Filtering out canopies and buildings from DSM to have a bare earth elevation

Can anyone suggest methods in filtering out trees and buildings from a DSM so as to come up with a reliable DEM? What I have is a grid from a LIDAR data (.tif file, with 1m resolution). I was going ...
7
votes
2answers
3k views

GEOTIFF explanation of .aux xml and tfw world file

I want to know how raster images work, I have a set of geotiffs that has no aux, tfw or xml when I check the spatial information in arccatalog, they do have an projection. and they shows correctly. ...
6
votes
2answers
889 views

Multi-page export in *.tiff and other image formats using Export Map?

Is there a way to export multiple maps in *.tiff using "Export Map" and setting Data Driven Pages? Because Data Drive Page work in "Export map" only with PDF.
6
votes
2answers
9k 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 ...
3
votes
2answers
2k 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 Tagged_Information:...
1
vote
1answer
91 views

Erase shapfile (polygon) area from GeoTIFF

I've been reading several posts to do so and one option would be to use gdalwarp -cutline, but I would need to keep what it is NOT inside the polygon area. GDAL or any command-line tool does that? ...
9
votes
3answers
984 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. ...
4
votes
1answer
872 views

gdal_translate- why jpg compressed tif is 2 times greater than jpg file?

Using the following two commands yields completely different size files: gdal_translate test.tif -of GTiff -co "COMPRESS=JPEG" -co "JPEG_QUALITY=100" output.tif and gdal_translate test.tif -of JPEG ...
4
votes
3answers
5k 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
1k 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
431 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 ...
1
vote
1answer
340 views

GeoTIFF created using ArcGIS for Desktop not displaying in Google Earth or Photoshop?

I originally had an IMAGINE Land Cover raster file that I opened in ArcMap. I used the Extract Feature from Raster to extract only the Developed class and saved it (still IMAGINE). Then I used the ...
-1
votes
2answers
2k views

.tif and .tfw to GeoTIFF [duplicate]

I have a .tiff and a .tfw file that I want to change into a GeoTIFF. When I try to open the file in ArcMap and ENVI 5.0, it is successful. However, in Google Earth it is not. Is there anyway to ...
13
votes
2answers
5k views

GeoServer: Best way to publish 2500 TIFF or 71 ECW files?

I have ortophotos of an area that I need to serve as a background map for my vectors. I got it as 2500 files (71,5MB each) in raw TIFF format with corresponding TFW word file - 180GB of data. ...
7
votes
3answers
30k 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
2answers
2k views

GeoTiff size - what to do?

I have a whole series of GeoTiff tiles, each one about 250mb in size, in total just over 90gb. I want to be able to display these as a wms into QGIS to 20+ GIS users and in the end make them into a ...
4
votes
2answers
2k 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
7k 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 ...
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 ...
3
votes
3answers
3k views

using Python to calculate NDVI, output as a Geotiff

I need a script that can calculate NDVI from two separate input Geotiff files, then output the results as a Geotiff. I wrote following script, most of which is borrowed from various on-line sources (...
3
votes
2answers
5k 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 ...
7
votes
2answers
2k 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 ...
5
votes
0answers
181 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 ...
5
votes
2answers
4k views

Obtain coordinates and corresponding pixel values from GeoTiff using python gdal and save them as numpy array

How to obtain projected coordinates as well as the actual pixel values at those coordinates from GeoTiff file and then save them into a numpy array? I have arsenci020l.tif file, and its coordinates ...
5
votes
2answers
5k views

Adding georeferencing data into tiff image

I want to create a georeferenced .tiff file from a .png file. So I convert the .png into a normal .tiff file using the following command line : convert image.png image.tiff Here, all works fine, I ...
4
votes
1answer
839 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 ...
4
votes
3answers
2k views

Convert from img to geotiff

Using gdal translate, would it be possible to convert from IMG to GeoTIFF? We have very little experience with gdal and would really be grateful for some insight.
2
votes
2answers
7k 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 ...
9
votes
2answers
564 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 ...
6
votes
1answer
2k 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 ...
4
votes
1answer
692 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 ...
1
vote
1answer
1k views

GeoReference tiff image into the Google map?

I want to Geo-reference a tiff image contain a Map for a specific region, I need to add this region(image) and Geo-reference it on the Google map, SO I can see on the map for the region I select the ...
1
vote
3answers
630 views

Convert .tiff data to bitmap just when rendering and at runtime by visualC++ code

I need to convert a .tiff image to a bitmap one without saving the bitmap. I know that I should use GDAL_translate but because I'm new, this function's interface is a little complicated for me. Could ...
5
votes
0answers
174 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 ...
5
votes
1answer
1k views

Why do TIF loaded into PostGIS lose their colormap?

I have successfully loaded a TIF image (using raster2pgsql) into my PostGIS 2.0.1 database. I can load the raster image into QGIS and it displays in the correct space. However, it has lost all colour ...
4
votes
1answer
960 views

Grid registration issue converting from GeoTIFF to Esri ASCII Raster format?

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 ...
4
votes
1answer
293 views

qgis 2.10.1. mac - geotiff singleband pseudocolor [duplicate]

i've installed mac version from kyngchaos including all required packages ... ... and just noticed the following: while windows version behaves like expected when trying to render an ordinary tif via ...