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Questions tagged [geotiff-tiff]

Use this tag when referring to georeferenced or ungeoreferenced TIFF (Tagged Image File Format) files.

TIFF (originally standing for Tagged Image File Format) is a file format for storing images, popular among graphic artists, the publishing industry, and both amateur and professional photographers in general. It is a common image format in which GIS developed map are exported to.

source: Wikipedia

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How to get extent out of GeoTiff

How do I get the extent out of the GeoTiff format? I want something like this: Extent(293518.1886150768,5680494.194041155,890338.5054657329,6267530.571271311) AKA the xmin, xmax, ymin, ymax coordinates from the GeoTiff? Edit: I'm implementing my…
Johan S
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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 original image to a small size and storing it with…
user8119
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Creating .tfw world files from .tiff & coordinates in Excel?

I have .tiff files from aerial photography. I also have coordinates of the center of these pictures (northing, easting, height as well) stored in a excel table. Is there a way to create .tfw world file from these information and, if so, what is the…
hotigeftas
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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?
Josh Knauer
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What is the meaning of the RGB band value is more than 255

What is the band value is > 255? I am new to GeoTIFF, I have read through the document and came to know the RGB value can be between 0-255. But while working on one of the file, I found that value is > 255 (SS 01). Any reason why it is > 255 and…
Shashidhar
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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 from the Tiff? Is it even possible? Edit: Well I…
user27341
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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 have no problem translating Pixel-Lat/Long. In my…
Steve Smith
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LZW compression differences between Global Mapper and gdal_translate

I compressed an GeoTIFF image with both gdal_translate and Global Mapper with LZW compression. The one Global Mapper compressed is much smaller, is almost 30% of the one gdal_translate compressed. gdal_translate -co COMPRESS=LZW -co TILED=YES -co…
Frank gu
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How do I inspect, then force a geotiff to be in the format of the Natural Earth 2 map?

We are using the Natural Earth 2 map as a test file, and it's worked swimmingly. Unfortunately, our archaeologist has given us a satellite image (not distributable) in the form of a geotiff that does not seem renderable by the application (after…
Brian Ballsun-Stanton
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Reproject JPEG to TIFF?

I want to import an elevation layer into GeoServer for later WMS access. This is the base layer I would like to import - http://en.wikipedia.org/wiki/File:Srtm_ramp2.world.21600x10800.jpg . What I'd like to do is reproject the layer to Mercator so…
haxx
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Is it possible to reduce the size of a GeoTIFF file by removing its white pixels?

I have a very huge GeoTIFF file (around 12GB). Most of it is made with white spaces. So, I thought that if I removed these white spaces from it, the GeoTIFF file would reduce its size to something smaller than 12GB. After researching for a while, I…
raylight
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How to read the wavelength of each channel in a UAV .tif image

I have a UAV .tif image, but I cannot figure out which channel is which color. I tried this code: https://automating-gis-processes.github.io/2016/Lesson7-read-raster.html which also doesn't help. More specifically at this point of the code: # Read…
just_learning
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What are the valid values for "band" in a GeoTiff file?

What are the valid values for "band" in a GeoTiff file? I've looked through the Geotiff Spec at http://www.remotesensing.org/geotiff/spec/geotiffhome.html and I am having trouble finding information about multi-band imagery. I'm looking for…
Alex B
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Visualizing GeoTIFF containing multiple GeoTIFF data sources (APPEND_SUBDATASET) in QGIS

I have a GeoTIFF that I have created in the following manner: gdal_translate first_grid supergrid.tif gdal_translate second_grid supergrid.tif -co APPEND_SUBDATASET=YES Dragging this into QGIS appears to only allow me to visualize the first…
Skippy
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gdal_polygonize.py - Silly Size requested

While running this: ./gdal_polygonize.py GBSM_JKR_ALL_WGS_GEOREFERENCED.tif -f "ESRI Shapefile" to_shapefile/ When the process memory size reaches 32GB it dies with: ERROR 1: CPLRealloc(-6442451024): Silly size requested. Segmentation fault (core…
MarkTeehan
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