GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file.
2
votes
1answer
211 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 ...
4
votes
1answer
716 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 ...
1
vote
0answers
103 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 ...
2
votes
1answer
435 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 ...
1
vote
1answer
138 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" ...
2
votes
1answer
277 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 ...
1
vote
1answer
48 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 ...
3
votes
1answer
489 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: ...
2
votes
4answers
233 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
432 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
509 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
692 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 ...
1
vote
1answer
362 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 ...
5
votes
2answers
236 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 ...
3
votes
1answer
164 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 ...
5
votes
3answers
770 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
382 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 ...
1
vote
1answer
267 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
115 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
852 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
768 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 ...
0
votes
1answer
1k 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 ...
5
votes
2answers
509 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
1answer
1k 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 ...
13
votes
3answers
4k 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 would ...
1
vote
2answers
165 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 ...
1
vote
1answer
128 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 ...
2
votes
1answer
487 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
61 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 ...
0
votes
1answer
246 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 ...
2
votes
2answers
551 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: ...
1
vote
0answers
289 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 ...
0
votes
1answer
382 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...
1
vote
1answer
144 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
381 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
3answers
3k 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
1answer
591 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
1answer
242 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 ...
2
votes
1answer
344 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 ...
3
votes
1answer
84 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
742 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
2k 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 ...
4
votes
3answers
113 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?
5
votes
2answers
704 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 ...
2
votes
1answer
137 views
Define gdalwarp tile size
gdalwarp has -co TILES=YES (256x256 as default)
Can I set different tile size?
Thanks
1
vote
2answers
129 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. ...
4
votes
2answers
850 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 ...
4
votes
2answers
416 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 ...
15
votes
5answers
608 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 ...
5
votes
1answer
274 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 ...
