foxy1989 Posted April 30, 2014 Report Share Posted April 30, 2014 Hello GIS Area, I am a student at the specialty of photogrammetry and remote sensing, and as I got a task to calculate the percent coverage photos of clouds. I tried to do this by a supervised classification unfortunately this is not efficient if anyone has any idea how to do this. Photo from satellites WorldView-2 multispectral. Available on the university ERDAS 2013, ArcGIS and eCognition. Please help Regards Quote Link to comment Share on other sites More sharing options...
darksabersan Posted May 1, 2014 Report Share Posted May 1, 2014 Hi foxy1989,I found a cloud covers identification method article.I didn't read completely the doc, but maybe it will help you to see a way of calculate them. http://www.jgrcs.info/index.php/jgrcs/article/viewFile/732/532 darksabersan. Quote Link to comment Share on other sites More sharing options...
foxy1989 Posted May 7, 2014 Author Report Share Posted May 7, 2014 Thanks darksabersan, but it not solve my problem Quote Link to comment Share on other sites More sharing options...
Lurker Posted May 8, 2014 Report Share Posted May 8, 2014 There is a cloud cover algorithm for landsat but I never find for worldview-2 Quote Link to comment Share on other sites More sharing options...
yaron1000 Posted May 11, 2014 Report Share Posted May 11, 2014 mybe this wil help it -The cloud detection : how it works (Venµs) for the start i thinek WorldView-2 have blue band The basic technique consists in thresholding the image of a spectral band in the short wavelength range (preferably a blue band). Pixels whose reflectance is above the threshold are declared cloudy http://www.cesbio.ups-tlse.fr/multitemp/?p=876 Quote Link to comment Share on other sites More sharing options...
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