All Questions
Tagged with erdas-imagine gdal
10 questions
1
vote
4
answers
739
views
Most efficient way to perform rastercalculations with GeoTIFF and/or ErdasImagine files greater than 100gb
I have many GeoTIFFs ranging from 50-300gb and expect I'll have some even larger in the near future. I running a simple subtraction on a pair 77gb 1-band files, but I will also have similar 6-band ...
- 151
0
votes
1
answer
272
views
Need pros and cons of performing a GeoTIFF from ERDAS img conversion
I have a 20GB ERDAS IMG file that I need to incorporate into my project.
It's data covers the entire USA, indicating the thickness of satellite sensed tree canopy.
What image format would provide me ...
0
votes
1
answer
2k
views
ECW not reocgnized as supported file format in GDAL operation
I've installed QGIS 3.6 for MAC, with GDAL 2.4, ECW GDAL Plugin for GDAL 2.4, and manually installed the libraries from ERDAS ECWJP2SDK 5.4.
This allows me to insert ECW files as raster layers in ...
- 401
2
votes
2
answers
2k
views
GDAL, Python, pyramids/statistics read/write
As I work through learning programing with raster imagery, I am trying to read in a raster, change the pixel values and write the output file. Below is the code. I have blocked out the change pixel ...
- 92
2
votes
2
answers
2k
views
ERROR 1: None of ECW_ENCODE_KEY and ECW_ENCODE_COMPANY were provided
I downloaded ERDAS-ECW_JPEG_2000_SDK-5.1.1 and tried to use it with GDAL to create ECW files from georeferenced PNG files, but they are not created, it basically complains about:
ERROR 1: None of ...
- 2,131
1
vote
1
answer
949
views
Could not open/read USGS raster file
I could not open/read the following .img file.
The document below says it is a raster file.
http://edc2.usgs.gov/1KM/land_sea_mask.php
I tried to open it using many ways such as Q-Gis software, and ...
- 179
1
vote
1
answer
2k
views
Enabling Erdas ECW files in gdal
I want to enable read support from Erdas ECW files in gdal on windows.
I have GDAL binaries from here and I also have a self compiled version.
When compiling myself I have found the options in nmake....
- 1,087
1
vote
0
answers
374
views
Uninstall ERDAS ECW/JP2 SDK Version 5.0 (Ubuntu)
I am using Ubuntu Linux as main OS when it comes to geoprocessing but I am not yet an expert using it. I recently needed QGIS to have ECW support, so I followed the instructions of Luke in the ...
- 457
1
vote
0
answers
174
views
Why does ERDAS not like my GDAL output?
I am creating a raster using GDAL and the IMAGINE file doesn't work in ERDAS because it doesn't recognize the projection.
Here is the code to generate a sample:
from osgeo import gdal
projectionWkt ...
- 873
11
votes
0
answers
2k
views
Why is GDAL ECW compression much poorer than ECW compression from ERDAS [closed]
We use ECW compressor shipped with ERDAS Imagine to export Orthoimagery for our different departments. Because we are facing problems with the Imagine license server, we had to choose GDAL (built with ...
- 1,643