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Questions tagged [geotiff]

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

GeoTIFF is a public domain metadata standard which allows georeferencing information to be embedded within a TIFF file. The potential additional information includes map projection, coordinate systems, ellipsoids, datums, and everything else necessary to establish the exact spatial reference for the file. The GeoTIFF format is fully compliant with TIFF 6.0, so software incapable of reading and interpreting the specialized metadata will still be able to open a GeoTIFF format file

more information - http://en.wikipedia.org/wiki/GeoTIFF

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How to do Latitude/Longitude for Lambert Geotiff with Model Transform Tag Matrix?

I have a number of charts using lambert transformation. Some of them use the Tie Point tag. For this I have figured out the Lat/Long<=>X,Y transformation. I also have some charts that use a model transform tag instead. So far I am unable to figure…
user3344003
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Can you create an XYZ directory from geotiff

Can you create and XYZ directory structure with GDAL? I have a bunch of geotiffs and I would like to re-project them with GDAL and create am XYZ directory structure.
lostintranslation
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GeoTIFF import in worldwind ::: cannot read raster : unable to decipher image organization

I'm trying to import some (Matlab-generated) GeoTIFF files into WorldWind but seem to have no luck whatsoever. Any useful hints would greatly be appreciated. The GeoTIFF files do display fine in ArcGIS (allowing me to create a .tfw file when I…
user2455068
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TIFFOpen: Too many open files

I'm trying to open a geotiff from the ASTER data set, but it gives an error that I've been unable to figure out. Here is my code: #include "stdlib.h" #include "stdio.h" #include "tiffio.h" void read(void); void main() { read(); …
evenex_code
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Postgres - Convert bytea PNG column to GeoTiff

I have loaded a massive set of tiles into a postgres database for use in a tile server. These were all loaded into bytea columns in PNG format. I now find out that the tile server code needs these to be in GEOTiff format. The…
user1331131
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Colormap to grayscale tif image in 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 you have any other solution,please let me know.
Suresh Kumar
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Java heap space error when creating TIFF image

As I am new to TIFF handling with JAI, I am trying to create an RGB TIFF image of 6000*6000 with float data. Actually the code works for 5000*5000 image but when I increase the size, I am getting a Java heap space error at line…
user1321402
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try to use GDAL to mege geotiff

I have several consecutive geotiffs that I want to merge .I use GDAL to try out but the final geotiff has no color, only black and white. I want to ask if there is a python plug-in that can directly synthesize multiple Geotiffs. Or how to use GDAL…
aaaa2222
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How to calculate the mean of only one channel for a 3d numpy array?

I have a numpy array of shape (66,67,4). When I do np.mean(imarray) it calculates the array mean but takes all channels into consideration. I want to calculate the mean of only channel 1 and channel 3, separately. I am doing this since I have a .tif…
AhmedTech
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Why all the data is Nan when I load NDVI image by rasterio or gdal

I calculated NDVI value and saved single band images following this page; https://developers.planet.com/docs/planetschool/calculate-an-ndvi-in-python/. After that I wanted to load those images on python by rasterio or gdal, loading images were…
Mashiro
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How to convert a .TIF into a GeoTiFF

I am using a function to download Google map images given a pair of latitude and longitude of the area. I can manage to change the format of the downloading images into jpeg or png or tiff but I would like to save the images as Geotiff in order to…
Skarl001
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Transform GeoTiff into JPEG under condition of number of bands

I'm super new to FME. I have lots of GEOTIFFs which I want to convert to JPEG, which works fine (as seen in the picture below (without the Tester)). But now some of my tiffs have 3 colour and some have 4 colour bands. If the tiff has 4 bands, I can…
uelf1
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Geotiff Rotation Python/GDAL/QGIS

I am trying to rotate geotifs by different amounts in python, GDAl and/or QGIS and keep the georeference information the same. Is there a way to do this?
jondave
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Convert xyz file to geotiff

I have a file with xyz values which I want to convert to a geotiff so I can serve it on the web using a geoserver. The xyz file is essentially a bathymetry with the points (xy) being on a 5x5 grid (but some points are missing as there are no…
Yorian
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Python/Flask - Uploading a file by passing a path from a Jupyter Notebook

Context I have created a Flask application that allows me to: (1) upload a GeoTIFF file to a specified folder (UPLOAD_FOLDER) (2) use GDAL to open the uploaded GeoTIFF as a Pandas data frame, and return a JSON containing all the cell values. The app…
isevans77
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