Haniyeh Ebrahimi Salari

4 Questions 3 Answers 0 Followers

Questions related from Haniyeh Ebrahimi Salari

How can I overcome the problem of unwanted pixelation artifacts running a pixel purity index algorithm?

I am trying to extract endmember from the PPI image. As the Original image contains some Unwanted pixelation artifacts, PPI algorithm identifies these pixels to be the purest on the whole image...

08 August 2014 8,925 4 View

Do I have to do topographic and atmospheric correction on the entire image?

I would like to do to do topographic and atmospheric correction for several landsat images using ATCOR. Can I run it just for a spatial subset of the scene? (It is really time consuming to do it...

05 May 2014 7,982 3 View

Comparing images acquired by different satellites?

I am doing land use change detection based on landsat 5, 7 and 8 images. At the pre-processing step I have done radiometric calibration and also used dark-object subtraction technique for all...

01 January 2014 5,341 9 View

What are the main steps of processing Aster GDEM v.02?

I want to use Aster Global Digital Elevation model V2 in Atcor to perform topographic correction. The area of interest is covered by 4 tiles. How can I prepare the model?

01 January 2014 756 5 View