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New satellite images for Agriculture research & applications
By Arhanghelul,
Good news for those who are interested in Agriculture research and applications.
Another constelation of small satellites will be lauch, starting 2016.
More detail here:
http://spacenews.com/silicon-valley-firms-join-forces-on-agricultural-imagery-venture/
how to get the probability value of a pixel during maximum likelihood classification in ERDAS imagine ?
By LAKSHMI,
I'm trying to do a fuzzy land cover classification using maximum likelihood classification. I need to get the probability of each pixel to fall in a particular class. Some equations have been formed based on gaussian distribution to calculate the fuzzy membership value corresponding to each pixel. To calculate this value each pixels are to be considered individually and substituted in the following equation: D = (X-M)^T * (cov)^-1 * (X-M) where X is a 4*1 matrix representing the DN for a particu
hyperspectral radiometric correction
By ahmed omar abd el aziz,
Dears Could any one help me to get radiometric correction parameter for hyperspectral images EO1 Hyperion ?
(SCAI) seed cell area index
By mahfoud,
Hello everyone,
I am working on risk. I have used an heuristic aproach and i've generated a susceptibility map of risk and i want to validate my map by comparing with the inventoried traininig sites. does anyone know how to use the (SCAI) seed cell area index or any other alternative?
Thanks
How to edit points in a point cloud ?
By nadar,
I'm looking for a solution to modify the elevation of selected points in a .LAS or .PLY points cloud.
I want to simulate an increase or decrease of the height of selected objects (trees, buildings, etc.). I dont want to change their colour.
The ability to move a selected group of 3D points would also be useful.
I know how to do this in a mesh generated from the cloud, but I have to fully preserve the details of the cloud.
can somebody share some ideas or indicate a software compatib
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