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Topic: Correlation of two satellite images

Hello,

I am just writing my bachelor thesis about dune migration in Qatar. I am doing most of my work with ArcGIS but I also would like to write about the possibility to use COSI-Corr to analyse dune migration. For that I would like to show an simple analysis with COSI-Corr.

I would like to use the picture down there, which is from 2004 and compare it to almost the same picture just from 1995.
http://www1.minpic.de/bild_anzeigen_thumb.php?img=205940.jpg

Both pictures are from qatari georeferenced satellite data. They are cut out with a rectangular masc in ArcGIS and have the same resolution of one meter. They are saved as tif-data. The only difference is that the picture of 1995 is black and white and just has one band, while the same picture of 2004 has three bands. I tried straight away to analyse the pictures with "COSI-Corr - Correlation" and used a lot of different options sometimes runing through and sometimes not. But the only results I got are black and white images showing pixels.

Now I would like to ask if anyone knows the mistake I am doing? I have the feeling the pictures are ready to work with, but as I have not much ENVI-experience maybe I am missing something out. I could upload the second picture if it helps or a screenshot of the results?

Thank you for reading and helping

Best regards, Fabian

2 (edited by fabian.boe 2013-05-13 08:02:51)

Re: Correlation of two satellite images

http://www1.minpic.de/bild_anzeigen_thumb.php?img=205941.jpg



The size of the original images is 1303x1004 Pixel


Thanks

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Re: Correlation of two satellite images

What parameters did you use in the correlation? And I suppose this post should go in the correlation section...

Sebastien